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Scientist's plane talk a breath of fresh air - Vancouver Sun

If air travel makes you sick, the most likely reason is poor quality air, says University of Victoria professor emeritus Martin Hocking. The chemist, who is internationally known for his research on air quality in enclosed spaces, prefers to catch a ...

Whirling prayers for a vanishing culture - Edmonton Journal

Others provide "oxygen pillows" with a protruding tube to suckle. I love Chinese food, but for breakfast I'm a bacon-and ... However, it is fascinating to watch teachers and their novitiates hotly debate religious points every afternoon in the leafy ...

Transplant of faith: Religion complicates life-or-death decision - Daily Herald

Maribel Perez, a 36-year-old mother of two from Alexandria, Va., needs a lung transplant to extend her life and free her from an oxygen tank. But she is a Jehovah's Witness, and the religion teaches that blood is sacred and that God prohibits the ...

The path to enlightenment - WA today

Across slopes and glacial streams, Nick Hunt follows holy men and Hindu faithful to a sacred cave in Kashmir. For our three-day trek, 4300 metres up in the Indian Himalayas in Kashmir, we'd come prepared with waterproofs, walking boots, sleeping bags ...

Veterinary Emergency - Seattle Post Intelligencer

Last week, we discussed two of the conditions we often diagnose in older sick cats. The third disease that can cause increased thirst and weight loss is Diabetes. Diabetes mellitus is a condition which your body does not make enough of a hormone ...

1,000 trapped on ferry stuck in Baltic Sea ice - Tacoma News Tribune

After clinging to life rafts in high seas for up to 16 hours, more than five dozen students and crew from a Canadian sailing ship that sank in the Atlantic headed to port Saturday aboard Brazilian naval vessels. The three-masted SV Concordia was on a ...

Fly Girls: TV series follows flight attendants at home and in the air - USA Today

ABOARD FLIGHT 97 FROM WASHINGTON TO LOS ANGELES — The man in 4D flirts with Louise Nguyen as she serves him a drink. Then he hands her his business card. "He probably wanted a date, but I won't see him," says the poised, perfectly made-up Virgin ...

The Mad Logophile: Boo! Paranormal Terminology - DAILY KOS

Welcome to The Mad Logophile. Here, we explore words; their origins, evolution, usage. Words are alive. Words are born, they change and, sometimes, they die. They are our principal tool for communicating with one another. There are over one million ...

Celebrate this Holiday Season with Trees - American Forests

... Christmas tree an average of five to 16 years to grow, and as they grow, Christmas trees support life by absorbing carbon dioxide and other gases while giving off fresh oxygen. Every ... a fresh route for water to travel into the trunk.

Reader Travelogue: Re-riding history - Memphis Commercial Appeal

Original travel experiences are an endangered species in high-altitude Cuzco, Peru. The thin-air region is home to savvy local ... shortness of breath are nothing a strong cup of coca tea or supplemental oxygen pumped into a pricey hotel room won't ...

Open Question: I have a Unit test that I need to make sure my answers are correct.?

1. If the air inside a balloon exerts a force of 1 N on an area of 0.5 m2, what is the pressure inside of the balloon? (1 point) 0.5 N/m2 1 N/m2 1.5 N/m2 2 N/m2 2. Where is fluid pressure greatest? (1 point) 30 centimeters below the surface of a swimming pool 1 meter below the surface of a swimming pool 2 meters below the surface of a swimming pool The pressure is the same in all parts of a swimming pool 3. Which of the following is not possible? (1 point) compressing 10 liters of oxygen gas into a 1 liter volume compressing 2 liters of water into a 1 liter volume filling a balloon using helium gas from a pressurized tank allowing 5 liters of compressed air to expand to a volume of 100 liters 4. The operation of a hydraulic lift system is explained by (1 point) Archimede’s principle. Bernoulli’s principle. Newton’s principle. Pascal’s principle. 5. The hydraulic system of a dump truck is designed to multiply (1 point) distance. force. pressure. speed. 6. Which of the following statements is true about an airplane wing during flight? (1 point) Air above the wing travels faster than air below the wing. Air below the wing travels faster than air above the wing. The wing exerts pressure equally in all directions. The lift acting on the wing reduces the weight of the wing. 7. A brick weighs 21 N. Measured underwater, it weighs 12 N. What is the size of the buoyant force exerted by the water on the brick? (1 point) 33 N 21 N 12 N 9 N 8. The strength of the buoyant force acting on an object in a fluid depends on the object’s (1 point) mass. surface area. volume. weight. Completion Complete each sentence or statement. 9. Pressure is the result of force distributed over a(an) _____________. (1 point) 10. A substance that flows and assumes the shape of its container is a(an) _____________. (1 point) 11. The direction of the buoyant force on an object placed in fluid is ________________. (1 point) Short Answer 12. If you know the air pressure exerted on a tabletop, how can you calculate the force exerted on the tabletop? (3 points) 13. For a fluid that is not moving, what are the two factors that determine the pressure that the fluid exerts? (3 points) 14. Why aren’t organisms that live on the seafloor crushed by water pressure? (3 points) 15. Compare the size and direction of the lift on a plane with its weight as it flies at a constant speed and altitude. (3 points) 16. How are density and buoyancy related? (3 points) Problem 17. In the figure, a force of 1000 N is exerted on Piston 1 of the hydraulic lift shown. What force will be exerted on Piston 2? Show your work. (5 points) more

Voting Question: I asked a question like this similar to this before, I want to know if this plot is good?

I asked a question like this similar to this before, I want to know if this plot is good? Rate it 1-10 10 being the best and criticism I do not mind. At year 3032, located almost a million light years away, the deserted planet of Tyrlon was discovered. Space travel have advanced so much that we can travel that distance only in 10 months. A team of archeologists went to the deserted planet, trying to find out how the Tyrlonains lived….. We discovered that they were primitive but advanced civilization. Also we came to the conclusion that the Tyrlonians also looked a lot like humans when we discovered their skeletal remains. The air was breathable to humans, oxygen, nitrogen and other gases that were present at Earth were in the Tyrlon’s atmosphere. We planned to stay here for 10 months, excavating the site. But one day, as our team continued excavating the site, I came upon scrolls that were written in the Tyrlonian language, Tryn. I was able to decipher some off it, and when I did, it unveiled a great story of this demi goddess named Azathya. I was amazed on how well it was preserved because it seemed like it was over 5,000 years old. I was able to discover a lot about the Tyrlonains culture and way of life through the epic we should more call it. When we came back to Earth almost a year later, we reported our finds. I had some translators translate the epic into English and many other different languages, such as Chinese, French, Spanish, Italian, Japanese….. the translators were so impressed that they decided that we should publish the epic so anyone could read it. We called the epic “The Epic of Azathya: Goddess of the Tryloains.” The epic is so long that we had to divide it into three parts, a trilogy for the more matter. It was an instant best-seller. Not only because it was the first piece of literature discovered from another planet, but the fact that the story was so ‘amazing’(as some people called it), a ‘page-turner-‘ , and so many other names …. But the story also makes you wonder. In the story, she saved her people from her father’s wrath and threats to destroying them, which stopped the planet Trylon from meeting Armageddon. But eventually, the planet does fall, how through if she saved it? This question kept me up all night, and made me buy a copy of the book itself. I went home and started reading…. The story is about Azathya, a 17 year old girl who is half Tyronain- half god. She doesn’t want to accept this because she wants to live her life normally. But when the other gods and goddess of her kind [her father (who is the leaders of the gods) and also abandoned her when she was born because she was not the son that he wanted.] tried to destroy her home, (she knows this by the mysterious killings and attacks of the mythical creatures) she takes action. She goes on a quest to try to earn the right to enter the Realm of the Gods, the mythical world where the gods live, but it requires the finding of three different keys that will open the portal to mortals. (It is the Tyronain inside her that is preventing to go into the Realm) The finding of these keys will prove to the gods that the Tyronain is courageous, cunning, and all the different features that will prove to the gods that they are worthy to be in their presence. The quest is dangerous, filled with puzzles, and the fighting of monsters and other mythical creatures and monsters that the gods send down to try to stop you. She knows that no other mortal survived, but she goes on the quest anyway. She does survive finding all three keys. She goes to the entrance of the Realm and enters it. There, she defeats her own father by a mythical sword that she found during her quest and she pierced it through his heart. She tells him that she is sorry that she had to this, but his actions left her no choice. Now with him gone, Azathya is the only one that could take the place as queen of the gods. But the gods do not like the idea of a half god being over them, so they send her on another quest that will prove that she is truly worthy of being a god. They agreed if she comes back alive, that they would change her to a full god. But they are also planning to make this quest almost virtually impossible to accomplish because they really do not want to change her (hoping that she would not survive so they could appoint one of their own as head god.) That quest will then go to the second book. more

Resolved Question: Earth science look over ASAP PLZ?

Please go over my answers and tell me what I got wrong... (Telling me the correct answer would also be nice please,but u don't have to) hurry I only have 20 mins the X is the answer i picked What does the principle of uniformitarianism tell us about the past? (Points: 5) The past is the key to the future. X The present is the key to the past. Processes at work in the past were very different than those at work today. The past has no bearing on the future or present. 2. The Pacific Ocean is shrinking while the Atlantic Ocean is expanding. Which type of plate boundary must be involved in each location? (Points: 5) Pacific Ocean, convergent; Atlantic Ocean, divergent Pacific Ocean, transform; Atlantic Ocean, convergent Pacific Ocean, convergent; Atlantic Ocean, transform X Pacific Ocean, divergent; Atlantic Ocean, transform 3. The theory of plate tectonics explains the movement of the plates by convection cells in which of the following layers? (Points: 5) upper mantle X mantle outer core crust 4. Which of the following may occur at a transform plate boundary? (Points: 5) X earthquakes volcanoes mountain building formation of new oceanic crust 5. Earthquakes are detected by which of the following? (Points: 5) global positioning system X seismograph Richter scale tiltmeter 6. Which of the following statements about S waves is true? (Points: 5) S waves travel through solids, liquids, and gases. S waves arrive at a seismograph station first. X S waves are also called secondary waves. S waves move in a pulsating motion. 7. Why is coal not a mineral? (Points: 5) It does not occur naturally. It does not have a regular composition. X It is organic. It is not a solid. 8. In a laboratory, you scratch an unknown mineral on a piece of unglazed porcelain. Which property are you trying to determine? (Points: 5) fracture color luster X streak 9. Which of the following best describes an igneous rock that formed from cooling lava? (Points: 5) without grains foliated stratified X fine grained 10. Sedimentary rocks that form from evaporating seawater are classified as __________. (Points: 5) clastic X chemical organic fossiliferous 11. How do metamorphic rocks form? (Points: 5) cooling of magma X change due to heat and pressure evaporation of seawater weathering and erosion due to water 12. Which of the following is an example of chemical weathering? (Points: 5) Freezing and thawing rainwater widens a crack in a sidewalk. A growing tree root splits a boulder in two. A stream rounds and smoothes rocks into pebbles. X Acid rain discolors and disfigures a limestone statue. 14. The sun’s energy hits earth’s surface at the most direct angle at which of the following locations? (Points: 5) equator North Pole South Pole X 30° N or S latitude 15. Why does temperature increase with altitude through the stratosphere? (Points: 5) X The air molecules are closer together in the upper stratosphere. The stratosphere is closest to the sun. The ozone layer is found in the stratosphere. All layers of the atmosphere increase in temperature with altitude. 16. Which gas is the most abundant in earth’s current atmosphere? (Points: 5) carbon dioxide oxygen X nitrogen hydrogen 17. Which of the following was a major source of atmospheric oxygen? (Points: 5) outgassing X photosynthesis decomposition of water volcanic eruptions 18. What does a barometer measure? (Points: 5) temperature wind speed X atmospheric pressure air density 19. If heat energy is transferred from direct contact between a warm object and a cold object, it has been transferred by __________. (Points: 5) radiation conduction X convection the sun 20. What causes the Coriolis effect? (Points: 5) X earth’s rotation gravity radiation from the sun earth’s revolution 21. The flow of air from land to a body of water is called a(n) __________. (Points: 5) X sea breeze summer monsoon land breeze air current 22. Which of the following statements is most accurate? (Points: 5) Warm air sinks. Warm air exerts more pressure on the land than cold air. X Warm air is less dense than cold air. Warm air is denser than cold air. 23. Which of the following best describes the thermosphere? (Points: 5) Heavier gases such as hydrogen and helium stay at the bottom of the thermosphere. The atmosphere is so thin that gas molecules rarely contact each other. X Lighter gases such as nitrogen and oxygen rise to the top of the thermosphere. The thermosphere sits directly below the troposphere. 24. Tomorrow will be sunny with high clouds. What does this statement describe? (Points: 5) X the weather the climate air circulation jet streams 25. Which of the following is one of more

Resolved Question: Earth science help please!!?

Resolved Question: Earth science help plz be kind!!!!?

PLz plz answer these questions Correctly as possible It will be a very Generous thing for you to do. :) What does the principle of uniformitarianism tell us about the past? The past is the key to the future. The present is the key to the past. Processes at work in the past were very different than those at work today. The past has no bearing on the future or present. 2. The Pacific Ocean is shrinking while the Atlantic Ocean is expanding. Which type of plate boundary must be involved in each location? Pacific Ocean, convergent; Atlantic Ocean, divergent Pacific Ocean, transform; Atlantic Ocean, convergent Pacific Ocean, convergent; Atlantic Ocean, transform Pacific Ocean, divergent; Atlantic Ocean, transform 3. The theory of plate tectonics explains the movement of the plates by convection cells in which of the following layers? upper mantle mantle outer core crust 4. Which of the following may occur at a transform plate boundary? earthquakes volcanoes mountain building formation of new oceanic crust 5. Earthquakes are detected by which of the following? global positioning system seismograph Richter scale tiltmeter 6. Which of the following statements about S waves is true? S waves travel through solids, liquids, and gases. S waves arrive at a seismograph station first. S waves are also called secondary waves. S waves move in a pulsating motion. 7. Why is coal not a mineral? It does not occur naturally. It does not have a regular composition. It is organic. It is not a solid. 8. In a laboratory, you scratch an unknown mineral on a piece of unglazed porcelain. Which property are you trying to determine? fracture color luster streak 9. Which of the following best describes an igneous rock that formed from cooling lava? without grains foliated stratified fine grained 10. Sedimentary rocks that form from evaporating seawater are classified as __________. ( clastic chemical organic fossiliferous 11. How do metamorphic rocks form? ) cooling of magma change due to heat and pressure evaporation of seawater weathering and erosion due to water 12. Which of the following is an example of chemical weathering? Freezing and thawing rainwater widens a crack in a sidewalk. A growing tree root splits a boulder in two. A stream rounds and smoothes rocks into pebbles. Acid rain discolors and disfigures a limestone statue. 1 D 14. The sun’s energy hits earth’s surface at the most direct angle at which of the following locations? equator North Pole South Pole 30° N or S latitude 15. Why does temperature increase with altitude through the stratosphere? The air molecules are closer together in the upper stratosphere. The stratosphere is closest to the sun. The ozone layer is found in the stratosphere. All layers of the atmosphere increase in temperature with altitude. 16. Which gas is the most abundant in earth’s current atmosphere? carbon dioxide oxygen nitrogen hydrogen 17. Which of the following was a major source of atmospheric oxygen? outgassing photosynthesis decomposition of water volcanic eruptions 18. What does a barometer measure? temperature wind speed atmospheric pressure air density 19. If heat energy is transferred from direct contact between a warm object and a cold object, it has been transferred by __________. radiation conduction convection the sun 20. What causes the Coriolis effect? earth’s rotation gravity radiation from the sun earth’s revolution 21. The flow of air from land to a body of water is called a(n) __________. sea breeze summer monsoon land breeze air current 22. Which of the following statements is most accurate? Warm air sinks. Warm air exerts more pressure on the land than cold air. Warm air is less dense than cold air. Warm air is denser than cold air. 23. Which of the following best describes the thermosphere? Heavier gases such as hydrogen and helium stay at the bottom of the thermosphere. The atmosphere is so thin that gas molecules rarely contact each other. Lighter gases such as nitrogen and oxygen rise to the top of the thermosphere. The thermosphere sits directly below the troposphere. 24. Tomorrow will be sunny with high clouds. What does this statement describe? the weather the climate air circulation jet streams 25. Which of the following is one of the defining features of a hurricane? funnel cloud low pressure high pressure rapid snowfall more

Resolved Question: Help with AP chemistry.?

I was looking through an AP practice exam so I could practice for my final and these are the questions that I JUST DONT GET. Would someone please help me? 1.Which of the following is a nonmetal in period 4? a) C b) Ca c) Se D) Sr 2. Predict which of the atom is most likely to be a metal a) P b) Br c) As d) Co 3. If x-rays have a shorter wavelength than ultraviolet-rays, which of the following statements is true? a) x-rays have smaller frequencies than UV-rays. b) X-rays travel faster than UV-rays c) X-rays have more energy than UV-rays d) X-rays have larger amplitudes than UV-rays e) None of the above statements are true. 4. Arrange the following elements in order of increasing first ionization energy: S, Ar, Ca. a) S < Ar < Ca b) Ca < Ar < S c) S < Ca < Ar d) Ca < S < Ar 5. What do we mean when we sat that "The energy of the electron in an atom is quantized?" a) The electron has a very small amount of energy. b) The energy of t he electron is proportional to the mass of the nucleus. c) When an electron changes its energy, it emits a quantum of light. d) The energy of the electron can have certain fixed energies and not others. 6. If the difference in electronegativity between two elements in a compound is very small (less than 0.2), can you safely conclude that the compound formed from the two elements is covalent? a) Yes, because a small difference in electronegativity always indicates that a compound is covalent. b) No, because covalent compounds are formed between two elements with a large difference in electronegativity. c) Electronegativity has nothing to do with whether a bond is covalent or not. d) No, because a metallic compound could also be formed between two elements with a small difference in electronegativity. 7. Which of the following relationships between the two variables listed for an ideal gas does NOT give a straight line graph with a positive slope? a) P and T b ) n and V c) P and V d) T and V 8. Samples of oxygen and helium have been collected in two separate containers of equal volume. Both gases have the same temperature and pressure. a) The container of helium has the larger mass of gas. b) The container of helium has the larger number of moles of gas. c) Both containers have the same mass of gas. d) Both containers have the same number of moles of gas. 9. Why does a hot air balloon rise when the air in the balloon is heated? a) The average kinetic energy of the air molecules increases, and the collisions between these molecules and the walls of the balloon make it rise. b) The pressure of the gas inside the balloon increases, pushing up the balloon. c) The gas expands, forcing some of the gas to escape from the bottom of the balloon. d) The balloon expands, causing it to rise. 10. X = CH3-CH2-CH2-CH2-CH3 Y = CH3-CH2-CH2-CH2-OH Z = HO-CH2-CH2-CH2-OH Based on the concepts of polarity and hydrogen bonding, which of the following sequences correctly lists the compounds above in the order of their increasing solubility in water? a) Z < Y < X b) Y < Z < X c) Y < X < Z d) X < Z < Y e) x < Y < Z 11. Ionization Energies for element of (kJ / mol) First: 580 Second:1,815 Third: 2,740 Fourth: 11,600 Fifth:14,800 The ionization energies for element X are listed in the table above. On the basis of the data, element X is most likely to be: a) Na b) Mg c) Al d) Si e) P 12. The critical temperature of the substance is the a) Temperature at which the vapor pressure of the liquid is equal to the external pressure. b) Temperature at which the vapor pressure of the liquid is equal to 760 mm Hg c) Temperature at which the solid, liquid, and vapor phases are all in equilibrium d) Temperature at which liquid and vapor phases are in equilibrium at 1 atmosphere e) Lowest temperature above which a substance cannot be liquefied at any applied pressure. 13. Which of the following statements is always true about the phase diagram of any one-component system? a) The slope of the curve representing equilibrium between the vapor and liquid phases is positive. b) The slope of the curve representing equilibrium between the liquid and solid phases is negative. c) The slope of the curve representing equilibrium between the liquid and solid phases is positive. d) The temperature at the triple point is greater than the normal freezing point. e) The pressure at the triple point is greater than 1 atmosphere. 14. Which of the following is a correct interpretation of the results of Rutherford's experiments in which gold atoms were bombard with alpha particles? a) Atoms have equal numbers of positive and negative charges. b) Electrons in atoms are arranged in shells. c) Neutrons are at the center of an atom. d) Neutrons and protons in atoms have nearly equal mass. e) The Positive charge of an atom is concentrated in a small region. 15. The effective nuclear charge exp more

Resolved Question: Can someone please tell me what they think about this book I am writing?

I am writing a Novel for the first time in my life, and to be quite honest, I have absolutely no idea what I am doing. I just need some advice. Mainly the book is about time travel, though you really can't tell what the plot is from the following excerpt. Be as brutal as possible. The more criticism, the better! The car swerved off the road into a mass of water. The girl inside struggled against the door desperately, but the door wouldn’t budge. As the car continued to sink into the freezing depths, water began seeping into the car. Releasing herself from the seat belt, the girl climbed over to the passenger door. Unfortunately, it was just as damaged. During the accident the car had been hit on the side and had rammed into the bridge, jamming both doors. Realizing that her time was limited the girl began desperately pounding on the glass. Nothing happened. Water continued to rise. The water had advanced marginally; it was now to her waist. Her veins rushed with adrenaline, and her heart beat hard against her chest. Never had she once considered the possibility of death and as it crept further towards her she fought even harder to resist it. She braced herself against the seat and began kicking at the window. The soles of her converse skidded over the wet surface of the glass. Her cause seemed hopeless. The water continued past her eyes so that she had to float upwards to supply oxygen to her lungs. She could see the fog of her breathe as she breathed in as much air as she could. Her body already screaming out at her from the pain of her fight, she knew she would have to rest before any more attempts were made to escape. Before long the water reached the top of the car, and she reached back down to the window. She pushed with all her might but the window refused to break. The car lunged further into the depths of the water, throwing her against the front windshield. She felt the glass break beneath her, and ribbons of red escaped the small gashes she felt on the sides of her head and on her arms. The shock of the wounds caused her to gasp. Her body took in a large amount of cold water that attacked like small knives on the inside of her lungs. All her strength had fled from her. She tried with all the force in her to make it to the surface. But try as she did, her struggle seemed useless against the current. She had the most uncomfortable feeling that she was free falling. For a second, it felt even colder. Her nerves came back to her, groping the water for a way to get out. She was on the verge of unconsciousness when she saw a flash of a human form. Before she could make out the figure her mind went dark. more

Resolved Question: Please help me with 6th Grade Homework?

1. What two digestive processes occur in the small intestine? 2. How does the liver and pancreas function in the digestive process? 3. Where does lymph come from? 4. What happens to lymph after it travels through the lympatic system? 5. Describe the path that a molecule of oxygen takes as it moves from the air, into the alvioli? 6. What is the stomach of a cell called? 7. What is the function of the immune system? 8. What is a allergy? 9. How does diabetes effect the level of glucose in the blood? 10. How can the enviorment increase the risk of getting cancer?My god, is a few links to much to ask for? more

Resolved Question: Ethical Theories Question? What would you do?

Imagine that you are on a spelunking expedition. You have entered a cave and traveled deeper into the caverns for several hours. The group has entered a small room with only one entrance, the one used to enter the cavern. The entire group except for the leader has entered. As the leader crawls through the entrance, a cave-in occurs. The way out is blocked by her body, which is covered with tons of rubble. She is alive, determined by a pulse in her wrist, which is sticking out of the rubble. It isn’t possible to assess the degree of injury (for example, broken neck, internal injuries, and so forth) and moving her may cause more serious injury or death. Time passes, and no help has arrived. Further, the air in the small room is getting stale, and there is less oxygen to breathe. Would you remove her body, by any means possible, and, in the process, sacrifice her life in order to exit the cavern? Would you decide not to do anything to cause further injury or possibly death? What is the rationale for both responses? Integrate the reasons with the means versus the ends arguments that support the following theorie. more

Resolved Question: help me with science ( will give out best answer)?

ok this is my pre test paper, ok word bank is vector lift drag friction air resistance force gravity buoyancy thrust normal force heat cold aerodynamics photosynthesis positive neutral oxygen nitrogen lubricant questions i don't no are This force must be greater than the object's mass, friction and the pull of gravity in order for it to move upward so out of the word bank whet best describes that? and these a arrow that shows the size and direction of a force the backward movement of air from a propeller a object is said to be _______________ if it is able so easily travel through the atmosphere thanks more

Resolved Question: can i get financial help for my inventions?

I AM RAJKUMAR NARAYAN PANCHAL .I BORN IN INDIA VERY POOR FAMILY FROM CHILDHOOD I WAS THINKING TO BECOME SCIENTIST DUE TO POVERTY IT BECOME DREAM I AM MAKING ONE INVENTION .FROM LAST 500 YEARS NOBODY HAS TRIED TO INVENT, WHICH SHOULD BE ENVIRONMENT FRIENDLY, GOOD FOR HEALTH AND NO HARM TO NATURAL RESOURCES. I AM MAKING THE ENGINE, WHICH RUNS ON WATER YES ON WATER, AND BI-PRODUCT OR IT WILL EXIST 100% PURE OXYGEN THAT IS GOOD FOR HEALTH AND WE CAN PRESERVE CLEAN AND GREEN ENVIRONMENT FOR FUTURE GENERATION. THIS ENGINE CAN BE USED IN VEHICLE LIKE TWO WHEELER, THREE WHEELER, FOUR WHEELER LIKE CARS POLLUTION FREE ENGINE FOR MODERN WORLD FOR THIS I HAVE SPEND THREE TO FOUR YEARS YES,………………………………………THIS IS FACT 2. MY FUTURE PLANNING ARE ON SOLAR ENERGY (ENERGY WHICH IS FREE) 3. SOLAR PANEL WITH MATCH BOX SIZE CAN ENLIGHTEN 500WT FOR 12 HOURS. 4. WE CAN PRODUCE ENERGY BY METALS. 5. WE CAN TRAVEL BY AIR WITH VERY LOW COST .CAR, WHICH CAN FLY FROM ONE DESTINATION TO OTHER. 6. ONLY ONE MACHINE, WHICH CAN MAKE SALTY OCEANIC WATER TO CLEAN AND SAFE DRINKING WATER. IF YOU THINK IT CAN BE POSSIBLE CAN I GET FINANCIAL HELP FROM YOU .YOU CAN SAVE THIS WORLD BY HELPING ME. NAME: RAJKUMAR NARAYAN PANCHAL BANK A/C NO: 003901572253 BANK NAME: ICICI BANK LTD LOCATION: INDIA PAN NO: ALVPP4295L PASSPORT NO: G4980477 E-MAIL: raj_loove4u@yahoomail.com CELL NO: +91-9226462804 IF YOU WANT TO PROTECT THIS WORLD FROM POLLUTION, IF YOU WANT TO SAVE FOREST, IF YOU WANT TO DO SOMETHING IN YOUR LIFE THEN HELP ME WE WILL MAKE THIS PLANET HAPPY. I HAVE DEVOTED MY WHOLE LIFE FOR INVENTION more

Resolved Question: . Imagine a red blood cell leaving the right ventricle of your heart. its multiple choice please help?

10. Imagine a red blood cell leaving the right ventricle of your heart. To which chamber of the heart will that cell return first? A.right atrium B.right ventricle C.left atrium D.left ventricle E.impossible to say from information given 13. During cellular maturation, mammalian erythrocytes lose their A.nucleus. B.plasma membrane. C.mitochondria. D.hemoglobin. E.None of the answers for this question are correct 14. Which component of the blood is most important for clotting? A.plasma B.leukocytes C.erythrocytes D.platelets E.All of the choices listed for this question are important for clotting. 18. Which structure prevents blood flowing back into the heart from the aorta between heartbeats? A.semilunar valve B.atrioventricular valve C.tricuspid valve D.mitral valve E.ductus arteriosus 19. Which structure prevents blood flowing back into the atria during ventricular contractions? A.semilunar valves B.atrioventricular valves C.sinoatrial node D.carotid blood shunts E.foramen ovale 23. Blood returning to the mammalian heart in a pulmonary vein will drain first into the A.vena cava. B.left atrium. C.right atrium. D.left ventricle. E.right ventricle 24. ______ are the only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart. A.Amphibians B.Birds C.Fishes D.Mammals E.Reptiles 25. If a human red blood cell takes the shortest possible route from the right ventricle to the right atrium, then it must travel through _____ capillary beds. A.one B.two C.three D.four E.five 30. Which of the following is NOT a reason respiration in water is challenging? A.Water is very dense relative to air. B.Water holds relatively little oxygen compared to air. C.Water moving over thin respiratory epithelial surfaces can create osmotic challenges. D.Dessication of respiratory surfaces is a significant problem. E.All the choices except "dessication of respiratory surfaces" are correct. 31. All of the following respiratory surfaces are associated with capillary beds EXCEPT the A.gills of fishes. B.alveoli of the lungs. C.tracheae of insects. D.skin of earthworms. E.All of the answers for this question are correct. 37. The actual sites of gas exchange in the mammalian lung are termed A.alveoli. B.lamellae. C.parabronchi. D.bronchi. E.epiglotti.8 more

Resolved Question: Ruby has pneumonia; I've taken her to the vet.. how do I obtain oxygen?

Here's a little background information: Ruby is about a year or so old, a white rat with red eyes. She was caged in a 4ft x 2.5ft x 2.5ft wired cage with levels, with 4 other rats. I've been in the military, going through school with my family taking care of my girls, in a SMOKE FILLED environment. I just came home almost 2 weeks ago, and got her and the others out of that home, into a SMOKE FREE emvironment. About a month ago, my family informed me that one of Ruby's cage sisters passed away due to pneumonia. They took her to the vet, but she was too bad... Anyway, around this time, my family informed me that Ruby started losing weight and showing the signs of a URI. They took her to the vet and started her, and the other rats on ENROFLOXICIN. After about a week, Ruby started showing signs of improvement in her breathing. Her antibiotics were stopped, and they continued to take care of her as usual. Right before I came back from school (September 4th), Ruby had a relapse and her breathing became bad again. When I got home, I took her to the vet, and he gave me more ENROFLOXICIN. She was showing no signs of improvement, and yesterday (September 15th) at around 8PM, she was literally GASPING for air, and spitting up mucus. I took her to UNIVERSITY OF PENN vet, which is supposed to be one of the best vets on earth (also the most pricey, unfortunately). The vet confirmed that she had a very bad case of Pneumonia, and she recommended that Ruby stay there on oxygen and be sent to their exotic animal department in the morning. She also explained to me that Ruby had a small chance of survival over night. To keep Ruby at the hospital, the vet said it would cost me over $1500. Unfortunately, I couldn't afford that, after having spent almost $500 on her already. They spoke to me about putting her to sleep, but I couldn't bare that either. I did what I could and asked them what I could do to make her comfortable with me over night. They sent me home with two different antibiotics, DOXYCYCLINE and TRIMETHOPRIM/SULFAMETHOXAZOLE (twice daily for both, .33mL and .21mL). I came home with Ruby, and I could tell she was very sleepy. I made her her own cage up to sleep in without having to deal with her rambunctious sisters. She ate a little, and went to sleep. So here's where my question comes in. My Ruby is a strong girl, and she's still here. Her breathing isn't as horrible as it was yesterday. She's still breathing heavy, but she's not gasping anymore. She is eating and drinking. I would like to get her an oxygen tank, and treat her at home with me. What would I need to do? What should I keep her in? What amount of oxygen do I use? And finally, I'm leaving in 3 days, will she be okay to travel for 6 hours to bring her home with me?Also, I have a nebulizer, but no albuterol for it. Is there a mixture I can put in the nebulizer to help her? My Aunt suggested a pinch of salt and water. Any suggestions?Also, I'm having a hard time getting her to take the Trimethoprim-Sulfamethoxazole... do you think it would be okay to mix it with some honey and give it to her that way? Or should I try something else? more

Resolved Question: About our Respiratory System?

I know that our diaphragm contracts and relaxes, which causes us to inhale and exhale. But does the diaphragm have any role involved with yawning? I know that when you yawn air travels through the bronchial tubes to the alveoli to take in needed oxygen and release carbon dioxide. But does the diaphragm have anything to do with yawning? I'm just wondering cause if the diaphragm is in charge of breathing, then shouldn't it play a role in yawning too when you inhale and exhale? more

Resolved Question: Question about diaphragm and yawning?

Resolved Question: I have a question about the Respiratory System?

Resolved Question: Question about the Respiratory System?

Resolved Question: Why do we think space is empty?

By deffinition space means empty. But like space, the univerce, how cam we say it's empty? Like im sure that humans at one point didn't think there was anything in the air. Like someone said that hey, I bet there's something there. I can't see it but I bet it's there. Thus we discover oxygen, and other types of elements. So my question to you is, why can't space just be full of something that we havnt discovers yet? Something that we can't pick up on with tests and stuff, because we don't have tests for it. And if there is something there, would that mess with the theory that light waves can travel without a medium? Oh yeah, one more thing. Am I crazy?So I do agree with my logic being circular, I'm going to be looking into dark matter. I don't know all that much about all this stuff but it's very interesting, but what do you expect form a 15 year old? more

Resolved Question: What is best solution for failing septic system?

I have a hotel with septic system that is failing, causing wastewater to surface on the parking lot out of the sewers. One engineer has recommended a newer technology, involving aerating the septic system. The company that provides this technology is very expensive but may be a more economical alternative to replacing the entire septic system. The company has this about how it deals with the problem: "Air is injected into the leach field and travels into the surrounding soil. The oxygen in the air allows the soil microorganisms to thrive and reach unprecedented population levels. In a process similar to composting, this oxygen allows the microorganisms to reduce (eat) the accumulated organic matter, unclogging the leach field and allowing the wastewater to infiltrate into the soil. Within a few weeks, the leach field is back to its original hydraulic capacity." Basically, an electric pump and fan type device. More info at soilair.com. Its expensive and i'm sure there are other companies that can provide better competitive pricing. I wasn't really able to find any online. Does anyone have any suggestions, experience here for dealing with this type of problem. The septic system I have has two 2000 gallon capacity tanks. Thank you! more

Resolved Question: Science Help??? Hey i really need help so if you know any of this stuff please help!?

1. If the air inside a balloon exerts a force of 1 N on an area of 0.5 m2, what is the pressure inside of the balloon? A. 0.5 N/m2 B. 1 N/m2 C. 1.5 N/m2 D. 2 N/m2 2. Where is fluid pressure greatest? A. 30 centimeters below the surface of a swimming pool B. 1 meter below the surface of a swimming pool C. 2 meters below the surface of a swimming pool D. The pressure is the same in all parts of a swimming pool 3. Which of the following is not possible? A. compressing 10 liters of oxygen gas into a 1 liter volume B. compressing 2 liters of water into a 1 liter volume C. filling a balloon using helium gas from a pressurized tank D. allowing 5 liters of compressed air to expand to a volume of 100 liters 4. The operation of a hydraulic lift system is explained by A. Archimede’s principle. B. Bernoulli’s principle. C. Newton’s principle. D. Pascal’s principle. 5. The hydraulic system of a dump truck is designed to multiply A. distance. B. force. C. pressure. D. speed. 6. Which of the following statements is true about an airplane wing during flight? A. Air above the wing travels faster than air below the wing. B. Air below the wing travels faster than air above the wing. C. The wing exerts pressure equally in all directions. D. The lift acting on the wing reduces the weight of the wing. 7. A brick weighs 21 N. Measured underwater, it weighs 12 N. What is the size of the buoyant force exerted by the water on the brick? A. 33 N B. 21 N C. 12 N D. 9 N 8. The strength of the buoyant force acting on an object in a fluid depends on the object’s A. mass. B. surface area. C. volume. D. weight. Complete each sentence or statement. 9. Pressure is the result of force distributed over a(an) _____________. 10. A substance that flows and assumes the shape of its container is a(an) _____________. 11. The direction of the buoyant force on an object placed in fluid is ________________. Short Answer 12. If you know the air pressure exerted on a tabletop, how can you calculate the force exerted on the tabletop? 13. For a fluid that is not moving, what are the two factors that determine the pressure that the fluid exerts? 14. Why aren’t organisms that live on the seafloor crushed by water pressure? 15. Compare the size and direction of the lift on a plane with its weight as it flies at a constant speed and altitude. 16. How are density and buoyancy related? Problem 17. In the figure, a force of 1000 N is exerted on Piston 1 of the hydraulic lift shown. What force will be exerted on Piston 2? Show your work. more

Resolved Question: What do you think of my story?

I wrote this a couple of months ago and I'm wondering if it's worth continuing. Blood stained the floors. It stained the walls, the air and even the sky. It flew with the wind, into the oxygen the Black Crimsons breathed, soaking their hearts and soul. All the while, cheers echoed out of the spectators, into the ears of the entertainers whose pride grew stronger with each applause. As for the weak Crimsons, the human, red-blooded Crimsons, they were only seconds from fatality; it only took one more drink. For them, blood was no where to be found apart from the liquid that dripped from their necks and wrists and the liquid that rushed through their veins too quickly for sanity. Too weak to stand on their own two feet, they stood on their knees, which were bound to only hold for a small moment longer. Horror had already far from shielded their body, and trapped their soul, piercing their heart with the stakes of fear the entertainers had easily managed to stab in. Wide grins of pleasure stretched the Black Crimsons’ pallid faces as they approached them not for the first time that night. Then, with one last cheer, a lift, a thrust and a last bite, the Crimsons’ tortured souls drifted from their bodies and high up as far as they could go. But, it wasn’t far enough, as everyone in Black Crimson knows, no one could leave to the heavens once they are drained of all the purity they ever had. It was a curse to live what they had just did, but a bigger one to have to witness it for the rest of time. As the poor souls have no where else to go, they will forever be trapped in Black Crimson, obliged to watch the many more tortured deaths that were very soon to come. The Crimsons trailed in a chained-attached line. Their arms, legs and whole body were covered with red, curved lines as if their skin were translucent enough to show their veins. Their red veins. Though, looking at the Black Crimsons around them, their lines were not much different with the exceptions that they were black as their souls. If they even have one. But, by experience, everyone in Black Crimson knew -Crimsons included-, that this was the act of the injection they were all inserted with to identify their giving nature. It was a painful procedure but how else would they know who are the prey and who are the predator? Who are weak and who are strong? Fiona Thomas, one among the kidnapped Crimsons was already far from terrified. She obediently followed, already experienced the punishment given to those who didn’t. She had been taken from France, traveling with two of her friends of whom one of them walked in front of her. The only thing left from the other was the memory of her tortured screams echoing in Fiona’s mind. “Move it, French girl.” A voice boomed in her ears before a hand roughly pushed her forward. Stumbling, Fiona realized she had stopped walking and ran to keep up with the line. She guessed that he called her “French girl” since they took her from France. But she had been only visiting with Kevin and Jessica. She cringed at the thought of her now dead friend. “Are you okay?” Kevin asked her in a whisper once she arrived behind him. She was about to nod until she saw the same Black Crimson rushing towards them again. Before she had the chance to do anything, Kevin was back-handed across the face and on the ground. Gasping, she leaned to his side but was quickly pulled back up by her hair. “No speaking!” The Black Crimson roared in her face before roughly letting go of her hair, her head flailing forwards. She watched as he then yanked Kevin off the ground, nudging him to keep walking. Everyone in the line ahead turned to look. Some looked worried, some looked anxious and others looked like they were going insane. “What are you Crimsons looking at?” The same Black Crimson yelled with his big mouth that seemed to be able to fit a basket ball. Not to mention his bulging muscles that looked like they were going to rip out of his black-lined covered skin. Not risking looking at Fiona, Kevin quickly faced forward and did as he was told as the others did also. Following close behind, Fiona sighed and looked up at the night sky. The two days that Fiona has been in Black Crimson, the sky was always black as if no sun existed. It was no wonder why all the Black Crimsons were so pale. The only light she had seen since she arrived was from lamps and candles which made her wonder is she was ever going to see the sun ever again. Looking down from the sky, Fiona watched all of the Black Crimsons that walked around as if it was just any normal day. There were females and males but Fiona never once saw a child since she had arrived. And, they all wore black. It didn't have to be matching suits, but their clothing was always black. It seemed as if everything for them had to be dark. Fiona was surprised the buildings weren’t painted black also. Instead, they were a dark, worn-oout beige. They picked up the newcomer from the arrival gate and where now walking on the sides on the dark roads, of which old looking buildings surrounded. They were walking back to their rooms, if you can call it a “room”. More like a cell, Fiona thought angrily, kicking a rock with her bare foot. All Crimsons were dressed in the same red shirt and pants as if the lines covering their bodies weren’t enough. They didn’t get any shoes and were only allowed to keep their undergarments. Fiona could feel tiny rocks prick under her feet, making her steps even more uncomfortable than they already where. They were now coming back with one new prisoner who had put on quite a show when she had arrived. The pain they inflicted on her after wards with the injection set her straight as she now numbly walked at the beginning of the line. Fiona wasn’t completely sure why the Black Crimson’s had brought them to get the newcomer so she just blamed it on their cruelty.The Crimsons cells were in a long, grey stoned building at the very end of Black Crimson. They were situated behind an immense, round building of which looked like some sort of old auditorium. Everything looked old here. When Fiona was pushed into her cell along with Kevin and, to their surprise, the new girl, she immediately felt caged. The cell was completely empty except for the tiny lamps that were situated in every corner of it. She went and sat in the corner of the cell, under the small, barred window that every cell had. Kevin came beside her, sighing and shaking his head. Both watched the new girl as she starred around the cell in what seemed like disbelief. A Black Crimson slammed the big, heavy metal door, making the new girl jump in surprise. She looked to be a couple years older than Fiona. She stood at an average height, under the red lines, her skin was deeply tanned, her eyes were the darkest brown and her hair, almost black fell in waves down her back.Fiona guessed that she was most likely Hispanic. Looking at the other prisoners, the Black Crimsons seemed to get people from all over the world. The girl still looked around, and then her eyes landed on Fiona and Kevin. “¿Donde estoy?” She spoke sadly. Fiona suddenly regretted not taking Spanish in high school. Kevin looked at her and she shrugged. “You don’t speak Spanish, do you?” She whispered to Kevin who shook his head afterwards. Sighing, she looked back at the new girl who was looking at them questioningly as if waiting for an answer. “I’m sorry. We don’t understand what you’re saying.” Fiona told her, articulating her words. “¿por qué hay que hacer esto?” She wailed, roughly sitting down against the opposite wall. Fitting her head in her hands, her shoulders began to shake and soft sobs where heard once in a while. Fiona sat stiffly for a long time, unknowing of what to do. She wasn’t sure if she should go over and console her or to let her be.Finally deciding to just let her be, seeing as she didn’t feel as good either, Fiona rested her head against Kevin’s shoulder to realize he had dozed off. Closing her eyes, she tried to block out the soft, miserable cries, her own lips jittering at the reminded sorrow. “¿por qué?” The Hispanic woman repeated in a soft whisper over and over again, filling Fiona’s mind with the unknown words. “¿Qué he hecho para merecer esto?” She wailed more loudly, making Fiona’s eyes snap open at the now lightless room, the lamps turned off. The lady’s weeps grew louder and sharper. Soon, Fiona found her hands shaking violently in frustration and fear. Quickly raising them to her ears, she added pressure as she tried to block out the undesirable sounds. The more pressure she added, the less sound was heard except the sound of her own shaky breaths of which were trapped within her. Fiona jumped when she felt something cold touch her arm.“Hey…” Kevin soothed in a low voice. “You okay?” Tears burning her eyes, Fiona slowly shook her head. A lump had taken over her throat, disabling her voice. Wrapping his arms around her, Kevin brought her tightly against him. She tucked her ear against his chest, concentrating on his fast heartbeats hoping the relaxing sound would distract her enough. “I hate it here, too.” Kevin whispered, laying his head atop hers. Soon enough, Fiona finally fell into an uncomfortable slumber. This is all I'm going to put for now. Thanks for reading :) more

Resolved Question: Which is more expensive..........?

I need to know which costs more money, manned space travel or unmanned. including like paying the people that make the robots, the money it takes for the material to make the robots and actually sending them into space. and paying the people to go into space, the equipment to meet their personal needs (like going to the bathroom), extra equipment to house them (like the chairs they have to sit in for take off and re-entry into the atmosphere and bedding), oxygen and air filters and actually sending them into space. i would really like a professional opinion, like some one that actually has worked with these things, or if you could provide an official website that has statistics on this or something would be great more

Voting Question: I need help with biology plzzzzz?

Which of the following actions increases the volume of your lungs, allowing more gases to be exchanged? A. The diaphragm flattens and moves downward. B. The rib cage becomes smaller. C. Air pressure increases inside the lungs. D. Gases move from areas of lower pressure. 2. The blood in veins is A. leaving the lungs. B. moving in single file. C. carrying oxygen. D. traveling to the heart. 3. Blood is carried to and from the cells of the body by the A. arteries. B. capillaries. C. muscles. D. veins. 4. Oxygen inhaled into the alveoli diffuses into the A. capillaries. B. arteries. C. adjacent alveoli. D. bronchioles. 5. The nervous system regulates breathing and the exchange of gases in the lungs by A. overriding signals during exercise. B. monitoring dissolved gases in the blood. C. maintaining a constant rate of inhalation. D. constricting the blood vessels in the lungs. 6. How does asthma affect the exchange of gases in the lungs? A. It causes the bronchioles to constrict reducing the amount of gases allowed into or out of the lungs. B. It destroys alveoli over time reducing the amount of surface area for gases to be exchanged. C. It makes the lungs produce mucus blocking the surface area for gases to be exchanged. D. It relaxes the diaphragm too much reducing the amount of gases allowed into or out of the lungs. 7. Why does CO2 diffuse from the blood into the alveoli? A. CO2 concentration is higher in the blood than in the alveoli. B. The brain signals the alveoli to absorb CO2 . C. When O2 leaves the blood, another gas must replace it. D. There is not enough hemoglobin to carry the CO2. 8. Where does the first contraction of the heartbeat take place? A. In the ventricles B. In the atria C. In the valves D. In the septum 9. The AV node signals the heart's ventricles to contract, pumping oxygen-poor blood from the right ventricle into the A. aorta. B. pulmonary vein. C. pulmonary artery. D. atria. 10. Which parts of the circulatory system delivers oxygen-rich blood to the rest of the body? A. The left ventrical and the pulmonary vein B. The left atrium and the capillaries C. The atria and the pulmonary artery D. The left ventrical and the aorta 11. Which of these structures of the lymphatic system helps to develop lymphocytes? A. The tonsils B. The thymus C. The lymph nodes D. The lymph vessels 12. How do lymphocytes help the body? A. They produce clotting factors. B. They filter and clean the lymph. C. They destroy foreign organisms. D. They reduce swelling in the nodes. 13. Lymph nodes filter lymph and trap: A. Fungi B. Viruses C. Bacteria D. All of the above 14. Circulation is maintained in the veins by the A. activity of skeletal muscles. B. use of two-way valves. C. contraction of elastic fibers. D. prevention of clotting. 15. Materials can diffuse into and out of blood in the capillaries because the capillary A. beds are near the heart. B. fibers are very elastic. C. walls are very thin. D. muscles act as pumps. 16. The diastolic pressure occurs when the A. left ventricle relaxes. B. right ventricle contracts. C. blood rushes into an artery. D. systolic pressure is too high. 17. Permanently high blood pressure is called A. stroke. B. atherosclerosis. C. hypertension. D. arteriosclerosis. 18. A clear, pale-yellow fluid that makes up more than half of the blood is known as A. plasma. B. platelets. C. white blood cells. D. red blood cells. 19. The part of blood that carries oxygen and carbon dioxide to the rest of the body is the A. plasma. B. platelets. C. white blood cell. D. red blood cell. 20. If you do not have the Rh protein marker on your red blood cells, you would be said to be? A. Rh negative B. Rh positive C. Type O D. Type AB 21. If you have neither the A nor the B protein marker in your blood, your blood is likely to be Type A. A. B. B. C. AB. D. O. 22. To help seal a wound, platelets release proteins called A. surface protein markers. B. Rh factors. C. immune proteins. D. clotting factors. 23. The major function of the lymphatic system is to A. transport blood from nodes to organs. B. conduct messages from sensors to the brain. C. return fluid to the capillaries. D. collect excess fluid from between the cells. 24. How are veins and lymph vessels similar? A. Both rely on one-way valves to avoid backflow. B. Both use a pump to keep up pressure. C. Both have elastic fibers to move fluid. D. Both leak fluid from their capillaries. 25. The lymphatic system empties lymph back into the circulatory system A. by way of valves. B. at lymph nodes. more

Resolved Question: 11 Questions that I need the answers to, please help me ): It would so make my day?

1.Convert the following pressures to atm. a.726 torr b.2.31 bar c.98 kPa d.16.33 psi 2.Consider the following changes imposed upon a sample of gas, assuming the variables not mentioned remain constant: a.What happens to the pressure if the temperature in K is doubled? b.What happens to the volume if the pressure is tripled? c.What happens to the volume if the temperature decreases from 300K to 200K? d.What happens to the temperature if one-half of the gas is removed? e.What happens to the pressure if volume decreases from 4 Liters to 2 Liters and the temperature increases from 25C to 323C? 3.Methane burns in air to produce carbon dioxide and water: CH4(g) + 2 O2(g)  CO2(g) + H2O(l) What volume of carbon dioxide, at 1 atm pressure and 112C, will be produced when 80.0 grams of methane is burned? 4.What is the volume of 6 moles of helium gas at 0.34 atm pressure and 33C? What is the density of the helium gas under these conditions? 5.Jacques Charles used the reaction of hydrochloric acid on iron to produce the hydrogen for one of his balloons. For one flight in 1783 he used 1000 lbs of iron and excess acid. What volume of hydrogen gas (in cubic meters) did he produce for this flight? Assume the pressure is 1 atm and the temperature is 22C. Fe(s) + 2 HCl(aq)  FeCl2(aq) + H2(g) 6.If 1.0 Liter of oxygen at 2.0 atm pressure, 2.00 Liters of nitrogen at 1.0 atm pressure, and 2.0 Liters of helium at 2.0 atm pressure, are all mixed in a 3.0 Liter vessel with no change in temperature, what is the final pressure of the mixture in the 3.0 Liter vessel? 7.What is the partial pressure of oxygen in the atmosphere at the top of Mt. Everest? Atmospheric pressure at the summit of Mt. Everest is 253 torr. The partial pressure of oxygen in air at 1 atm pressure is 0.20946 atm. 8.An ideal gas occupies a volume of 10 Liters at 27C. If the pressure on the gas is tripled at this temperature, the volume changes. To what value must the temperature change to restore the volume to the initial 10 Liters at the new pressure? 9.Using the Maxwell equation, calculate the root mean square speed of nitrogen gas at 25C. What happens to the rms speed if the temperature is doubled to 50C? 10.Imagine three automobiles traveling down the road at 20 mph, 34 mph, and 68 mph. Calculate the average speed and the rms speed. What is the significance of the rms speed? 11.A gas diffuses 5/3 times faster than carbon dioxide. Which gas might it be? a. O2 b. N2 c. CO d. He e. CH4 more

Voting Question: drag racing program in sql--- help!?

Can anybody help me with this? I have no experience at all in sql. I know it's a long problem, but I don't even know where to begin. The goal of the racing class I am in (drag racing) is to travel 1/8 of a mile in EXACTLY 5.800 seconds. The challenge is that many variables impact car performance, the most significant being weather conditions. In order to assist in achieving the target performance goal, a program will be written that tracks these variables. At any given race the racer will be able to enter the current weather conditions and the program will find the settings used to run 5.800 (or whatever was run that pass) when under similar weather conditions. The first step in this is to create the database and tables. You need to hand in the SQL script to: 1) Drop any existing related database and tables. 2) Create the required database and tables. 3) Set up the appropriate users and permissions. Here is the list of variables so far, in no particular order: Date Track Name Car number Elevation Track condition Comments time dial in delay box setting Hit brakes? (just Y/N or hard/light/moderate?) temperature relative humidity barametric pressure dew point horsepower correction factor Density altitude (will be calculated) pressure altitude adjusted altitude grains per pound vapor pressure relative air density relative oxygen density actual air density vapor pressure altitude difference heat index horsepower (corrected) wind speed wind direction track direction track temperature tire temperature rear tire pressure front tire pressure horsepower factor Launch RPM change in ET per 100 rpm launch change Shift RPM change in ET per 100 rpm shift change reaction time 60' time 330' time 330' mph 1/8 time 1/8 mph 1000' time 1000' mph 1/4 time 1/4 mph 60 - 330 330 - 660 660 - 1000 1000 - 1/4 330 - 1/4 660 - 1/4 margin of victory nitrous stages stage 1 nitrous target hp stage 1 nitrous jets stage 1 nitrous pressure stage 1 fuel jets stage 1 fuel pressure stage 1 nitrous delay stage 2 nitrous target hp stage 2 nitrous jets stage 2 nitrous pressure stage 2 fuel jets stage 2 fuel pressure stage 2 nitrous delay opponent name opponent notes Repeat all performance data for opponent (in case iCard is available) throttle stop 1 setting (I dunno squat about throttle stops yet) throttle stop 1 ratio throttle stop 2 setting (I dunno why 2 but I saw it somewhere...) throttle stop 2 ratio stage (shallow/deep/normal) converter stall rear shock setup front shock setup Digital 7 program name Static timing Launch retard amount Launch retard duration 2nd gear shift retard amount 2nd gear shift retard duration 3rd gear shift retard amount 3rd gear shift retard duration 4th gear shift retard amount 4th gear shift retard duration Percent rise Front suspension travel limit Rear suspension preload Front upper 4-link hole number Front lower 4-link hole number Rear upper 4-link hole number Rear lower 4-link hole number Ladder bar hole number Spark plug part number Spark plug source Spark plug gap Oil Filter part number Oil Filter source more

Resolved Question: Physics Help Please...Look over my answers thanks?

Due to the motion of the plane through the air and the shape of the wings, the pressure difference between the upper and lower edges of an airplane wing is 1% of atmospheric pressure. What area of the wing is necessary to lift a plane that weighs 10,000 N (remember, atmospheric pressure is 100,000 Newtons/meter sqaured). Don't make any assumptions about the size of the plane! 1000 sq meters 0.1 sq meters 10,000 sq meters 10 sq meters 100 sq meeters I chose 10 sq meters. 2. The velocity needed to escape from just outside the event horizon of a black hole is__________ while just inside the event horizon the speed necessary to escape is ___________. 300,000 km/s, unattainable 150,000 km/s, zero 250,000 km/s, 275,000 km/s infinite, zero I chose infinite, zero 3. When you drop your physics book on the table, why doesn't it fall right through? gravitational forces between neutral atoms repulsive electrical forces between electrons. because the distance between the nuclei of adjacent atoms is quite small compared with the size of the nuclei themselves. Strong Nuclear forces between the Nuclei I chose repulsive electrical forces between electrons 4. If the sun were to somehow turn into a black hole, what would happen to the Earth in orbit? t would be sucked into the black hole It would continue orbiting in its same path It would spiral in towards the sun, ending up at approximately 10% of the current Earth/Sun distance. It would be ejected from its orbit I chose it would continue orbiting in its same path 5. If two protons are removed from an oxygen nucleus, the result is nitrogen. neon. carbon. helium. none of these. I chose carbon. 6. Protons have both charge and mass. Imagine a two protons seperated by a short distance from another another. Compared with the electrical force repeling them from one another the , graviational force attracting them is the gravitational force is far less than a billionth of a billionth as strong (less than 10^-18) about half as much about ten times as much about the same magnitude the gravitational force is about a billion times weaker (about 10^-9) My answer about half as much 7.Imagine a large blob of water is placed close to the moon. Its spherical shape will be distorbed into an ellipsoid. Now image that the moon disappears and the blob is placed a much larger distance from the sun, such that the force of gravity at the center of the blob is the same as when it was close to the moon. What will happen to the shape of the blob? It will become even more ellipsoidal (farther from spherical) in shape It will become much less ellipsoidal (closer to spherical) in shape There is no way to answer this question unless the exact distance is known. It will have exactly the same ellipsoidal shape as when placed close to the moon Not sure about this one :) 8. A ball is kicked so that initially its horizonal speed is 5 m/s and its vertical speed is 10 m/s. When the ball reaches its highest point, its horizonal speed is _______, and its vertical speed is __________ 10 m/s, 5 m/s 10 m/s, 10 m/s 5 m/s, 10 m/s 5 m/s, 0 my answer is 10 m/s 5 m/s 9. An eagle flying horizontally at 3 m/s at a height of 5 m drops an egg. How far will it travel horizontally before striking the ground? Not sure. Thank you more

Resolved Question: Why does God not save the lives of passengers on a plane which breaks up at 35,000 feet?

So a bunch of people, believers and nonbelievers both, are travelling in a Dummasdeys Airways 747 on their way back to the U.S. from a spotted dick convention in London. The unimaginable happens. A passenger hid an oxygen canister in their luggage which has a faulty valve. At high altitude and low temperature, the valve fails, and the tank jets out the cargo bay, ripping a hole in the thin skin of the plane. Passengers recoil as oxygen masks deploy, then after an ominous sound of metal tearing below them, the coach passengers notice that first class rips away. The beverage cart almost gracefully falls into the clouds, tiny bottles of Frangelico and Mad Dog 20/20 and Jack Daniels dribbling like drops of caramel rain one after the other. The fuselage has ripped apart, and passengers who didn't strap themselves in are in freefall to a mostly certain fate. If they're lucky they'll lose consciousness in the thin air and fall into the Atlantic like sacks of wet cement. Is God responsible for this mishap? Or is it just free will which caused the oxygen tank to rupture and wreak havoc beginning with the cargo bay and ending with what could be described as a weird mashup of Faces Of Death™ and naked skydiving? more

Resolved Question: Would you kindly.best answer gets 10 easy points/?

Read and comment on this. I have checked it over a few times but it may still have spelling or grammar mistake sorry... thank you in advance, the most thoughtful answer gets 10 points. The vent was open. From it came soiled air that had no scent. The men in the chamber had on masks however and could only breath purified oxygen. It was pure and richly filled their lungs. These men were coal miners. They were each outfitted with a thick suit powerful enough to protect them from the flames. For these miners did not use picks or drills. Decades of research had placed fire in their hands. A man named Done came to the end of the tunnel, before his group of workers and told them to step back. It didn’t matter since they too wore suits, but he preferred the room. He lifted the weapon, not tool, for this is what he felt of it, and touched the buttons as naturally as if he took a breath. White fire leapt from the gullet of the machine and sprayed light against the men. Their suits were a brilliant red with black designs that ran across their bodies. The helmets made them all seem like creatures. Done released the button and looked at his work. In the place of a wall of rock was now a long tunnel. It opened grandly and sunk in to the center. He had enough room to walk a few meters before he once again primed the weapon. This is what Done did, day and night. He worked on two eight hour shifts, for the tanks needed to be filled with oxygen every nine hours. He would call the flame to clear a tunnel, walk as he made it larger, and would do this until the end of his shift. He didn’t know where he would go next. Sometimes he would turn or stop and double back to make another hole somewhere on the side. It was men behind him that would dictate where he went. These were the men that held instruments capable of finding coal. These were the men he relied on day after day to keep him safe. Some carried devices that set up framework and light. One of the men carried their lunch and liquids. Another held a survival kit. He sighed, no sound came from his mask, only the rhythmic churn of recycled air against the filter. Done wondered when he could leave and then pressed the button once more. He didn’t decided when he left. He turned over his shoulder. The men, his men, seemed like faceless animals. Hunched in loose suits with thick folds. The masks they wore with devoid of any feature. Inhuman eyes and a coiled tube that lead from their mouths to a rack of tubes against their hips. They’re not even human, he told himself. He imagined what it would be like to turn the flames against them. Watch as they burnt and their ashes fell. Would they cry in alien tongue? Or would they yell like men? This is what Done constantly thought during the burn. “It is,” a voice came from next to him. He shuddered to snap the flame off. His men watched him though none spoke up. Would they stand there waiting for him? Which one had spoken? Done realized he didn’t even know their names. He had always come down here. Traveled by foot and by tram. Side by side next to these men. Not even once had he asked for their names. Not once had he even bothered. Faceless. They were faceless, but worse, they had no names. more

Voting Question: Can someone double check my physics homework please!! Please help!?

1. If you could convert all the energy you get out of combusting one liter of gasoline to kinetic energy, and use all that kinetic energy to launch a 1 kilogram mass in the air, approximately how high would it go? assume the gas is high octane fuel containing about 50 million joules of energy per liter .5 kilometers (500 meters) 5 kilometers (5000 meters) 50 kilometers (50,000 meters) 500 kilometers (500,000 meters) 5000 kilometers (5,000,000 meters ** I chose 5 kilometers 2. Imagine that an astronaught weights 800 Newtons on Earth. How much will she weigh on the surface a planet with Twice the radius of Earth, and four times the mass? 800 Newtons 400 Newtons 100 Newtons 1600 Newtons ** I chose 1600 Newtons 3. Imagine that two football fans try to slide identical ice blocks down two ramps from the top shelf of the freezer to their beer coolers. Both ramps are the same height, but one is twice as long as the other (so that it makes a shallower angle). Since they are competitive people, they make a race of out it. Which Ice block will win, and why? a. The one that slides down the steeper ramp will win because it has greater kinetic energy at the bottom of the ramp. b. The one that slides down the shallower ramp will win, because it will loose less potential energy. c. they will both reach the ground at the same time since they both will have the same kinetic energy at the bottom. d. since both blocks will have the same kineitc energy at the bottom, the one that travels the shorter, steeper ramp will win. ** I chose answer a. 4. Two shopping carts, one filled with ten bricks and one filled with twenty bricks are pushed by identical twin shoppers with equal forces over equal distances until they get to the edge of a parking lot. which of the two carts will have greater kinetic energy at the edge? a. The cart with 20 bricks b. Both the same c. The cart with 10 bricks ** my answer b. both the same 5. Consider molecules of hydrogen gas and heavier molecules of oxygen gas that have the same kinetic energy. The molecules with more speed are: Oxygen could be either...there isn't enough information to tell Hydrogen Both the same ** my answer is hydrogen 6. Many people think that the force of gravity falls to zero just above the Earth's atmosphere. To refute this, how far away from the Earth's surface would you have to go before the force fell to one fourth is previous value? About 60 times the radius of the Earth. About three times the radius of the Earth About one Earth Radius About four times the radius of the Earth ** I picked the third answer about one earth radius 7. If the Polar caps melted and flowed towards the equator, the rotation of the Earth would tend to: Speed up (the day would shorten) Slow down (the day would lengthen) Stay the same It depends on the phase of the moon ** I chose stay the same 8. If you could throw projectile horizontally from a platform so high that it was just above the Earth's atmosphere, how fast would you have to throw it to get it orbit the Earth? (note that at that height, the accleration of gravity is still very close to 9.8 m/s/s). a bit over 11 km/s the speed of light. just over 100 feet/s a bit under 8 km/s ** I picked the first answer a bit over 11 m/s 9. Two twin brothers, one a kung-fu fighter and the other one a boxer each throw a punch that strikes their oponents with the same speed. The kung-fu figher stops his punch in one fourth the time that the boxer stops his (i.e. their fists come to rest at different times). Compared with the boxer, the Kung-Fu figher's punch delivers the greater: impulse change in momentum force ** I picked force as the answer Thank you. more

Resolved Question: What is a game like Alpha Centauri but, it is not?

I've been looking for the title of a game for a very long time now that I played, maybe about 8-10 years back. The basic story line was this. Earth is dying, so you and a few others go to a distant star system to keep the human race alive. Most people try to refer me to Sid's Alpha Centauri, thats not the game I'm looking for though. The game starts off with the selection of a star to travel to, with pro's and con's for each. I don't remember if its the only one that was really available, but I always travelled to Alpha Centauri B. You then go to to choose how many people to take with you, how many *reactor cores?*, food, water, ect. Each extra thing you take with you adds weight, so you are limited to a certain load. During the trip, a different faction ( I think ) takes one of the reactor cores and goes down to the planet themselves. ( why its important to take at least one extra ) This game set itself apart, to me at least, with a floating silver sphere AI that spoke to you about how things were going ( I named mine Nicole ). Another part of this game that sets it apart was that people died as the days went on after you first landed from lack of oxygen, so one of the first priorities was to get some buildings going to supply air. You could also go underground to build if the surface area was hostile, and to avoid sand storms and the like on the surface. This was an amazing game from what I can remember, and I'd love to play it again, but I can't think for the life of me what it was called. Every google I've tried always sends me back to Sid's Alpha Centauri, which I did get, and was dissapointed to find it wasn't the game I thought it was. Please help. Thanks, Epy ----------- Someone on a forum I frequent made this post, and I am extending the search to help them out. more

Voting Question: help with my physics homework?

1 why are modern radios calculators and computers much smaller today than they were in the past A.modern appliances use less electricity B.electricity has become more expensive C.vacuum tubes replaced larger transistors D. transistors replaced larger vacuum tubes #2 in wich medium does sound travel at the greatest speed A. air B. a liquid C. pure oxygen D. a complete vacuum #3 which of these characteristics is a property of matter in the plasma state but is not a property of a matter in the gaseous state A.low tempature B. high electrical conductivity C.low kinetic energy of particles D.large separation between particles. more

Resolved Question: Chemistry Problems. I've really tried! Please help and show work! 40 Points will be given!?

In case you are wondering how you will get 40 points from this, I will give you the best answer from this question (10 points) and post 3 other (random) questions and give you the best answer for those as well. Please help! 1. Explain the following seeming contradiction: You have two gases, A and B, in two separate containers of equal volume and at equal pressure and temperature. Therefore, you must have the same number of moles of each gas. Because the two temperatures are equal, the average kinetic energies of the two samples are equal. Therefore, since the energy given such a system will be converted to translational motion (that is, move the molecules), the root mean square of the two are equal, and thus the particles in each sample move, on average, with the same relative speed. Since A and B are different gases, they each must have a different molar mass. If A has a higher molar mass than B, the particles of A must be hitting the sides of the container with more force. Thus the pressure in the container of gas A must be higher than that in the container with gas B. However, one of our initial assumptions was that the pressures were equal. 2. Calculate the percent change in volume of air trapped in bread dough when heated from 20 oC to 100 oC. 3. The exosphere is defined as the region of the atmosphere in which molecular collisions are so infrequent that the average distance that a molecule must travel before colliding is at least the radius of the earth. The region begins at about 700 km at which height the temperature is about 1200 K. The density of molecules is 1.0x109 molecules per liter. What is the equivalent pressure? 4. The stopcock between a 3.00 L bulb containing oxygen at 195 torr and a 2.00 L bulb containing nitrogen gas at 535 torr is opened. After equilibration, what is the pressure in the system? Please remember to show work! more

Resolved Question: Chemistry Problems. Please help and please show work. I've really tried! 40 Points will be given!!!!?

Resolved Question: Chemistry Problems. Please Help and show work. I've really tried. 40 Points will be given!!?

Resolved Question: Read my newly published work!?

The Kinitics: Part 1- Escape and Capture Hi, my name is Tela Kinitic. I'm sixteen years old, and some people see me as an ordinary curly, brown haired teenage girl, but I'm not. I have to raise my younger brother and sister because my parents, Christina and Charles, lost us in the crowded streets of New York City while we were on the run from scientists and exposure of our family secret. Our family has always had this gift (or curse) that some people might call psychic powers. According to my parents, every single person in the Kinitics line was born with an ability inherited from a parent, grandparent, or ancestor. My mother has hydrokinesis, the power to manipulate water and other liquids with the mind, while my father has pyrokinesis, the power to manipulate fire with the mind. I am telekinetic, as my name describes, so I have the ability to move objects, but I am still stuck on micro telekinesis, I can only move small objects. My thirteen year old brother Jacob has cryokinesis, the ability to create and control ice. Penelope, my ten year old sister has chlorokinesis, or florakinesis, as some people call it, the power over plants. The scientists would try running tests or, who knows, probably dissecting a psychic's brain any shot they could get. But my family didn't plan on giving them that shot. So my siblings and I travel everywhere, trying to escape the hands of those after my kind while looking for our parents. We were in the scorched Arizona desert, and we still needed to cross New Mexico to get to Winnemucca, Nevada. I was "visiting" a friend I had met in camp over in my hometown of Aurora, Illinois. Walking under the desert sun quickly dehydrated me so I told my siblings, "let's take a break." We stopped and took a break under a dry, dead tree. "Hey, Jake, make me an ice cube, please," I said to Jacob, my masculine mini me. "Make that two," added Penny, my beautiful little sister. I envied how her short black hair shined brilliantly under the sun. Jacob conjured ice out of thin air. I think it had something to do with the hydrogen or oxygen in the air. "Here you go." He handed Penelope and me an ice cube each. Jacob had made one for himself too. We thanked him. "Hey," I exclaimed," I just noticed you learned how to form ice." "That isn't all I can do," he responded. " I can also do this." Jacob touched a tree and it froze inside and out. "That is so cool!" All he could really do for his first thirteen years were make the temperature slightly cold and create miniature snow clouds. Penny could just barely speed up and slow down the growth of plants. "How about you?" I asked Pen. "Watch," she said. The large roots of another tree came out of the ground and started whipping everywhere. "Awesome! Want to see what I ca--- I was interrupted by the loud VROOMING of a car. We all turned around. Driving toward us was a yellow jeep and the person driving it was my family's arch nemesis, Professor Julius Springer. His smile seemed as if he was going through rigor mortis. Right when he was about to hit us I pushed Jacob and Penelope out of the way and I jumped out of the way. Springer stepped on the brake and made a 360 degree spin that ended by crashing into the frozen tree. As we got up, three tall, muscular men came out of the jeep. "Get them!" ordered Springer. The three men took no mercy on us, even if we were kids, and tackled us down. While my attacker lay on top of me, I kicked him between the legs. He shouted a few curses, and I threw him off with my power. Meanwhile, Jacob was helping Penelope with her guy because he had just frozen his attacker. Penelope had no way to defend herself except with her root whips. As Pen whipped the man, Jacob formed hailstones out of the air. A root caught the guy and the hailstones came down on him until he was knocked out. When my younger siblings were finished with the guy, they ran to help me. I was having a hard time because I had just mastered pushing and pulling and throwing things with telekinesis. After the thirtieth telekinetic push, I got an intense headache. I closed my eyes trying to relax the headache, and I did but then I felt really cold. When I reopened my eyes, I saw my opponent lying on the ground with shattered all around him. "Wha--" “You just threw balls of ice out of your hands!" shouted Penelope. Jacob stood in place, stunned that I had the same power as him. "That isn't fair!" he shouted, “My power and I are unique, so you can't the same power as me!" He turned around with a pouty face. Rocks started levitate around him. Jacob, are you doing this? I said in my head. "Doing what?" he said out loud. Turn around, I thought once more. He did as I told him. What for? he thought in his head. Do you see my lips moving? The rocks instantly fell to the ground. He hadn't noticed them. Jacob was more stunned that we could hear what the other was thinking than when I used cryokinesis. "Is this what I think it is?"For some reason all my work did not fit in the details box. 2 finish reading it go 2 teenink.com, search the kinitics, finish it, rate, and comment on it. Thanks!Okay, thank u for all the "advice" and opinions, but can u tell me exactly what I could fix to make it better, I'd appreciate it!:) more

Resolved Question: Help with physical science questions please?

Okay, I have my final in 3 days and I have a review for it. And I don't get some of the questions on it. And I really need to get an A on this test to get an A in the class. Please help. Thanks. Here are some of the questions: on a motion chart, what does the steepness of the slope indicate? a. speed b. direction c. velocity d. acceleration if a person has moved 45 meters, in 100 mins, what is the speed? a. 45 meters per min b. .45 meters per min c. 10 meters per min d. 100 meters per hour what 2 things does velocity include? a. speed and distance b. speed and direction c. direction and displacement d. displacement and distance what 2 things does the force of gravity depend upon? a. distance and mass b. distance and speed c. velocity and mass d. volume and density what's the phys characteristic of matter, that keeps a non moving object from starting to move? a. momentum b. density c. inertia d. velocity what kind of wave can travel thru space, thru a vacuum, where there is no air or matter? a. a sound wave b. an electromagnetic wave c. compressional wave d. longitudal wave how is the potential energy of an electrical source measured? a. ohms b. watts c. volts d. amps what causes the static electricy to build up in a balloon when it is rubbed against carpet or hair? a. electrons are moved from one to the other b. protons are moved from one to the other c. electrons are pushed into atomic nucleus d. protons are destroyed what are the building blocks of protons and neutrons? a. electrons b. antiprotons and antinuetrons c. quarks d. neutrinos what type of matter is made of charged particles? a. gas b. liquid c. solid d. plasma what is a catalyst? a. chemical that speeds a reaction b. chemical that slows a reaction c. chemical that gives off heat d. chemical that absords heat or energy what does endothermic mean? a. heat is absorbed b. heat is given off c. the reaction goes quickly d. the reaction goes slowly what kind of reaction is this- A + B= AB a. single replacement b. double replacement c. synthesis d. decomposition what kind of reaction is this- AB + CD= AC + BD a. single replacement b. double replacement c. synthesis d. decomposition mercury oxide decomposes to make mercury and oxygen. 10.0 g of mercury oxide makes 9.3 g mercury and oxygen. How much oxygen is given off? a. 5 g b. .7 g c. 1 g d. 1.3 g melting candle wax is considered what kind of reaction? a. chemical b. physical c. mechanical d. tectonic if a balloon is heated, and pressure is not changed, what will happen? a. no changes, b/c pressure is not changed b. the balloon will increase in size c. the balloon will decrease in size d. the balloon will get larger, then smaller. if a balloon is put under pressure, but the temp is not changed, what will happen? a. no changes bc temp is not changed b. balloon will increase in size c. balloon will decrease in size d. balloon will get larger, then smaller an unstable atom is a. unchanging b. probably radioactive c. combining with other forms d. hydrogen if one rises into the sky, how does the atmospheric pressure change? a. pressure goes up b. pressure falls c. pressure does not change d. one cannot tell with this info if one has a closed container, and then heats the container with a flame, what will happen to the pressure in the container? a. pressure will not change b. pressure will fall c. pressure will rise d. temp will rise, and pressure will fall between the following two isotopes of carbon, which has the larger number of protons? Carbon-12 or Carbon-14? a. carbon 12 b. carbon 14 c. one cannot tell with this info d. they have the same number of protons Please help with any that you know. And that you know are for surely right. Thanks so much. more

Resolved Question: there is a tree in a planet in space with no atmosphere but with gravity, if a tree fell dose it make a niose?

before you answer this question please consider this: 1. sound is defined as vibrations that travel thought the air. 2. People believe that (Oxygen) is need to make a sound but but what about other types of gases. 3. people say that there is no air in space but doesn't every thing have to have matter in it to take up space. so if there is a a bag with no air of any kind in it, it would be tightly compact. 4. so if there is air it would travel but there is no one there. 5. is the tree making the sound or the object the tree hits please think about the question carefully: Note: i am neutral for this question this is why i want to hear what you have to say. more

Resolved Question: I have some homework where you have to fill in the missing words, it's about the lungs and gas exchange?

(?) marks where there is a missing word blood that is rich in oxygen is called (?) blood without much oxygen is called (?) Gas exchange takes place between the (?) and the (?) The walls of the alveoli and capillaries are very thin to allow the gases (?) and (?) to pass between them. The gas passing out of the blood and entering the air sac is (?) and is a waste product of the respration which occurs in the body cells. The gas which passes through the blood is called (?) The gas is picked up by the (?) (?) cells and is used in the body cells? Adapation pf the lungs. The lungs and alveoli are really well adapted to gas exchange in 4 ways.A huge (?) (?) which means lots of gas can be exchanged at the same time. A massive supply of (?) which mantains the different amounts of the two gas to be exchanged. Very (?) walls which means the gases do not have to travel ar. A moist surface to help with the gas exchange. more

Resolved Question: Earth science help, 10 points! :)?

1. Which layer of the atmosphere absorbs significant amounts of ultraviolet light? stratosphere lithosphere thermosphere troposphere 2. Which layer of the atmosphere does the space shuttle travel in? troposphere stratosphere thermosphere mesosphere 3. The tropopause is best described as which of the following? the boundary between the troposphere and the mesosphere the boundary between the troposphere and the stratosphere the boundary between the troposphere and the ionosphere the boundary between the troposphere and the exosphere 4. Which of the following is important for a temperature inversion? a layer of warm air over a layer of cold air two layers of warm air, one on top of the other a layer of cold air over one of warm air two layers of warm air 5. Chemicals released into the air from human activity, such as sulfur dioxide, carbon dioxide, and nitrous oxide, interact with the atmosphere to make acid rain. In which atmospheric layer does this process happen? troposphere stratosphere thermosphere mesosphere 6. Earth's second atmosphere (atmosphere II) was a thick atmosphere of primarily water vapor and carbon dioxide. What effects did this have on earth? Helium and hydrogen gases escaped earth's gravity. Heat energy was retained and water vapor condensed. Ultraviolet light split water vapor into hydrogen and oxygen. Increased oxygen allowed reptiles to thrive. 7. Banded iron formations were caused by the production of which atmospheric gas? argon helium oxygen water vapor 8. Which layer of the atmosphere contains a substance that was created from a product of living things and that protects living things? lithosphere heliosphere thermopause ozone 9. What is barometric pressure? the pressure of the atmosphere the increase in the weight of the atmosphere as elevation increases the increase in temperature as elevation increases the pressure of 1 metric ton of seawater 10. Which process in living things evolved as oxygen levels increased in earth�s atmosphere? mold spore production photosynthesis glycolysis aerobic respiration 11. A rising barometer indicates which of the following air masses is approaching? cold, wet air mass warm, wet air mass cold, dry air mass warm, dry air mass 12. Earth's second atmosphere (atmosphere II) was produced primarily by which process? plant life outgassing photosynthesis condensation 13. Which observation indicates that rain is approaching? rising barometer, decreased cloudiness, falling temperatures rising barometer, increased cloudiness, rising temperatures falling barometer, increased cloudiness, falling temperatures falling barometer, increased cloudiness, rising temperatures 14. Which were the earliest oxygen-producing life-forms? Euglena cyanobacteria mold earthworms 15. Which of the following is the third layer of the atmosphere? mesosphere exosphere stratopause ozone Thank you Kyle :) more

Resolved Question: How long can a beta fish survive in a container without air holes? (....or I guess can it?)?

I need to take a metra train home from school for winter break. Since I'm at school in Chicago I need to walk, take the el, walk, and then get on the train....all while carrying a bunch of stuff. I would like to transport my beta in a plastic cup with a lid on it so that it is much much easier to carry. How long can it go without oxygen holes in the container? (I can take the lid off once I get on the train, and it takes about 30 mins to travel/get on the train) more

Resolved Question: How many grams of air are required for an automobile to travel from Thunder Bay?

How many grams of air are required for an automobile to travel from Thunder Bay,Ontario, to Smooth Rock falls, Ontario? This is a distance of 670 km. Assume the following: 1) Gasoline is a pure octane, C8H18. (Gasoline is actually a mixture of hydrocarbons.) 2) The average fuel consumption is 10 L per 100 km. 3) Air has a density of 1.21 g/L 4) Air is 20% oxygen by weight. 5) The density of the gasoline is 0.703 g/mL. The balanced chemical equation for the complete cmbustion of octane is 2C8H18 (l)+ 25O2(g)--> 16CO2(g)+18H2O (g) Please help me with this equation. I don't get how to solve it! How many grams of air are required for an automobile to travel from Thunder Bay,Ontario, to Smooth Rock falls, Ontario? This is a distance of 670 km. Assume the following: 1) Gasoline is a pure octane, C8H18. (Gasoline is actually a mixture of hydrocarbons.) 2) The average fuel consumption is 10 L per 100 km. 3) Air has a density of 1.21 g/L 4) Air is 20% oxygen by weight. 5) The density of the gasoline is 0.703 g/mL. The balanced chemical equation for the complete cmbustion of octane is 2C8H18 (l)+ 25O2(g)--> 16CO2(g)+18H2O (g) Correct answer is 5.9 x 10 to the power of 5 Please help me with this equation. I don't get how to solve it! more

Resolved Question: dry cough, chest pain, breathing problems, dizzy.?

i currently taking some stuff that i went to the doctor a clinic not a hospital so it was cheap for me, i went there on October 31, 2008, i went there in the morning, so then i was at home taking my prescription and giving out candy staying inside warm with the heater. today is November 3, 2008 and i still don't feel god, what can be the problem? i am resting, sleeping good, my symptons are my chest wall feels tighten, it is difficult to breathe, and when i cough it sometimes hurts since it is dry cough, and if i take deep breathe my chest hurts, i sometimes get dizzy when i walk around my house. i drink plenty of fluids, Gatorade, water, orange juice, apple juice. the doctor prescribed me: AMOXICILLIN CAPSULES 500MG (3 times DAILY) TESSALON 100 MG (EVERY 4 HOURS) MECLIZINE HCI 25 MG (ANTIEMETIC) for TRAVEL SICKNESS currently right now, probaly 7 times in one hour my left side, my my chest it does some pounding to me it does not hurt alot, just a little. i'm not sure if its my lung, but it is something that seems like it its going into a balloon maybe not receiving enough oxygen maybe something is blocking it, but it does it alot. it does this alot at night time, and it is difficult to sleep i have to use 2 pillows and i cant sleep to the side i sleep with my head upward looking to the ceiling right now i have a low fever, and i didn't know about it, does seem like a have a low fever my digestion system is slow, it takes long to digest my food. when i was not sick, i would digest fast. only thing that digest is liquids such as water. i'm scared because i don't wanna get really sick then die i don't smoke, i don't drink, and i don't party. i am just norma guy, i just go to work, and i work at a kitchen cooking food. i just chill at home and watch tv, and play video games on free time. i use to do exercise 2 times a week, but now i can't it is so cold because the temp, and i am sick :( i live in russellville, arkansas, 72801 hope someone can help me out on this one and i have to work tuesday, november 4, 2008 i am not sure if i should go to work feeling bad because i will be working 10 hours as kitchen manager and in the morning it is cold and it might mess me up when i wake up since the air that i breathe makes my chest hurt and makes me cough alot Thanks.... more

Resolved Question: i got a friend that got stuck on this riddle from a tv show and doesn't know the answer, do you know it? ?

It comes about from a show I used to watch as a kid. I was about 7 years old at the time, could barely speak English, but I had a friend who could speak both English and Gaelic that used to translate American shows for me that we sometimes got from New York (depending on the weather) called "Men in Space" an early sci-fi long before Star Trek (I think from 1958 to 1961). I loved that show; it was all about travels to the moon and planets in the solar system. They didn't have much in special effects, but better than Dr. Who at that time. Well, the show that has haunted me was one that takes place on the Moon. 2 men are for some reason are doing a very long walk from one moon base to another. The walk takes 5 hours. They've walked 2 hours so far when one man's tank that's outside the suit is starting to leak oxygen. If they don't stop the leak it'll get rid of the air within a half hour. Now the problem should be easy to fix. It's just a loose nut on the hose going from the tank to the suit. it would be easy to just tighten it with a wrench enough so that even if it would still leak it would leak so slowly that they would get to a base beforehand. And they have a wrench; but it's in one of the men's overall pockets UNDER THE SPACE SUIT!! The man with the wrench can't just take off his suit and pull out the wrench (remember that part in Outland when the guy walks out to IO's surface without a suit and becomes a human jiffy-pop? That's what would happen on the moon too..) So somehow the wrench has to come out to fix the problem, but I can't figure out how! Now one clue: they needed the wrench. Their hands weren't strong enough to tighten it... and that's the last thing I know about the program that night, because one of the biggest storms to ever hit the Aran Islands hit right then, and I never saw the ending, nor did anyone else in Ireland it seems (believe me, I've asked!) I know there was an answer because the next week's show had the same character, so he lived somehow, but I just don't know how. For 40 years I've been trying to find out. I've tried to find the show on tape but I never have, nor have I found any scripts. But I know there's an answer to this mystery that involves good thinking, and not some show trick. How do I know? because I actually found one of those mini-mysteries books with the problem in it! There is no way I can tell you how delighted I was to find that problem in the book. (I scared the hell out of the people around me with my shouting of "THIS IS IT!! THIS IS IT!! I looked like a madman) but you should have seen the way I looked when I read "Answer on page 238 and discovered that someone had torn out all the answers!! I never found the book again. So, 40 plus years living in my own version of Hell. Why does it bother me so much? Because I've never been able to get rid of the idea that I SHOULD be able to solve it. Usually I can figure out the mystery within an hour at the most ('no brag, just fact")but this damn thing has taken me over 40 years!! What am I missing? Help!! ok, here's how we'll do this. Give me your ideas, and we'll see which one will make the most sense. I'll play devil's advocate and tell you any points I have against the idea, and so will the others reading (count on that). I'll also answer any questions you may have about the surroundings or parts. I can't remember everything, but believe me, there's a LOT I do remember maybe we can solve this.(or maybe someone read that damn book. That's fine, cheat damn it) I hope so; I'm sick of this haunting...The original question is here -----> http://forums.2kgames.com/forums/showthread.php?t=19966&page=90yeah it kind of is, he wanted to be as detailed as possible.Well, in a nutshell, How can you take out a wrench to tighten the airhose in space, if somebody has one in under his/hers space suit.they are too weak to use their hands.The series is called "Men in Space", he mentioned something about a book maybe in the same titlemight been have called men into spacei don't know the correct answer, maybe someone has seen it.sharing oxygen might be possibleWould be nice if someone is old enough to remember the show. in here is my friend that asked the question ----> http://forums.2kgames.com/forums/showthread.php?t=19966&page=91It might even be called "Men into space"Might have been called Space Challenge in the USA more

Resolved Question: what you do if your were on a spelunking expedition?

Resolved Question: pls help. blood & oxygen & diffusion ahh!...... 10 points?

ive written here about oxygen and blood and diffusion, however i am a little confused and not to sure if i have written the correct thing....can someone pls read it and point out if i have done something wrong? thank you - ive just pasted from the trachea..... ....... The trachea divides into two branches called the Bronchi. This branch then continues into smaller bronchioles, finally ending in tiny alveoli / air sacs. Every single alveolus has contact with tiny capillaries which have clustered around it. These tiny capillaries form a close contact with the membranes of the alveoli. This allows the diffusion to take place between the membranes of the capillaries and the alveoli. The deoxygenated blood is carried into the right atrium by the two vena cavae, which passes through the right atrioventricular valve or tricuspid valve into the right ventricle. From the right ventricle it is pumped into the pulmonary artery. This is where carbon dioxide is exhaled and oxygen absorbed. The oxygenated blood is carried from the lungs via the pulmonary veins into the left atrium of the heart. The blood passes through the left atrioventricular or bicuspid valve into the left ventricle. The blood is then pumped through the left-semi – lunar valve into the largest artery in the body, the aorta. It then travels throughout the body through smaller arteries, arterioles and capillaries. i'm studying animals too sorryi'm confused about the diffusion and how carbon dioxide is exhaled. i wasn't too sure if i wrote the right thing....its all very confusing more

Resolved Question: How can a car to produce more CO2 than the fuel that is uses?

A car which uses approx. 1 litre of fuel (weighing approx. 750g) can travel approx. 15 km, therefore using 50g of fuel to travel 1 km. How is it then possible that 50 g of fuel produces 158 g of CO2? Simple mathematics would imply that the other 108g must come from a combination of the oxygen from the air that combines with the carbon from the fuel and the CO2 that is already present in the air. Why must we pay vehicle tax on the oxygen that a car uses and the CO2 that is already present in the air? more

Resolved Question: side-effects of helium?

i already know that helium is lighter than air... less dense... sound travels with higher pitch... ok, but what are some permanent side effects/problems of this gas? (excluding the "if you hold it in too long, you get no oxygen...") more

Resolved Question: Read the Activity below and make a choice based on deotological and teleological?

Read the Activity below and make a choice about what you would do in the situation based on deontological( means-based) or teleological (end-based) theories. What are the merits of each theory ?What approach did you use to make your decision and why? Activity: Imagine that you are on a spelunking expedition. You have entered a cave and traveled deeper into the caverns for several hours. The group has entered a small room with only one entrance, the one used to enter the cavern. The entire group except for the leader has entered. As the leader crawls through the entrance, a cave-in occurs. The way out is blocked by her body, which is covered with tons of rubble. She is alive, determined by a pulse in her wrist, which is sticking out of the rubble. It isn’t possible to assess the degree of injury (for example, broken neck, internal injuries, and so forth) and moving her may cause more serious injury or death. Time passes, and no help has arrived. Further, the air in the small room is getting stale, and there is less oxygen to breathe. Would you remove her body, by any means possible, and, in the process, sacrifice her life in order to exit the cavern? Would you decide not to do anything to cause further injury or possibly death? What is the rationale for both responses? Integrate the reasons with the means versus the ends arguments that support the following theories (Abrams, 1989). more

Resolved Question: Wierd science question just out of curiosity?

Ok, I have a hypothetical scenario and for some reason my imagination kept running and I was wondering about the science behind it. Assume the following are true: 1. People are in an airtight, watertight underground bunker. 2. There is only one round chute/tunnel from the bunker to the surface. 3. There is a very powerful fan in an expanded chamber of the tunnel that never stops blowing air. It is slightly larger in diameter than the tunnel. -----------{----------- -----------{----------- Now my questions: 1. would the fan which is blowing outward from the bunker allow oxygen into the bunker? 2. Could harmful airborn bacteria/particles make it past the fan or would they get pushed back by the fan? 3. Could any airborn particles as a result of nulcear fallout travel down the tunnel? I know that there are other problems with the scenario, I was just wondering about the air conditions as I am a layman when it comes to biology/chemistry. Thanks in advance for any helpNo, nothing like that. :-) It actually started as a thought about the movie the Dirty Dozen when the guys are throwing the grenades down the chutes into the bunker. That thought progressed to "why didn't the make the air chutes go away further from the bunker" then that went to "what would happen if bombs blew up the chute, that would suck" then that went to "in a nuclear situation wouldn't the harmful stuff just go down the chute" then I started trying to imagine ways to prevent airborn particles from reaching the bunker. Nothing sinister I promise. more

Resolved Question: Oxygen for Air Travel with Goldfish?

I am moving by air from chicago to connecticut by a morning 6:30 am. I will be packing my goldfish in a large plastic with 30% water and rest with air or oxygen. Where can I get small oxygen cylinders? more