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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A scuba diver inhales 110 mL of compressed air at a pressure of 3.7 atm. What is the pressure of air in the lungs if the gas expands to 250 mL?
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- a)What volume of air at atmospheric pressure is required to fill a 14 L diving air tank at a pressure of 1.45x10^7 N/m²? b) if sea level consumes 13.5 L of air per minute, how long will the air contained in the above tank last? c) How long will the air contained in this tank last at a depth of 10 m where the pressure has increased by 1 atm? Suppose consumption is the same as at sea level. "arrow_forwardI got 680 N is this correct?arrow_forwardAt standard temperature and pressure, a gas has a density of 0.089 kg/m3. What volume (in m3) does 1.25 kg of hydrogen occupy at standard temperature and pressurearrow_forward
- A teenager in a large pool at a certain depth D, equipped with a full scuba gear, takes enough air from his tank to fully expand his lungs then swam up to the surface. During the ascent, the teenager failed to exhale which is not advisable. The difference between the external pressure and the acquired pressure in his lungs is 8.7 kPa. Determine the depth D. O 29 m 0.89 m O 9.5 m 8.7 marrow_forwardA simple thermometer is formed by taking a large spherical container of volume 1.13m³ and filling it with an ideal gas. Then, a U-shaped tube is attached that is very narrow so that very little fluid/gas can fit inside the tube. The tube has a small quantity of a fluid of density 1200kg/m³ placed in it. In equilibrium at room temperature - 21.9°C - the height of the fluid on both sides of the U-shaped tube are level. This is illustrated in the image below. What is the temperature of the gas in the spherical container when the left side of the fluid is 13.25cm higher than the right side of the fluid in the U-shaped tube? Atmospheric pressure is 101000Pa. °Carrow_forwardMany cultures around the world still use a simple weapon called a blowgun, a tube with a dart that fits tightly inside. A sharp breath into the end of the tube launches the dart. When exhaling forcefully, a healthy person can supply air at a gauge pressure of 6.0 kPa. What force does this pressure exert on adart in a 1.5-cm-diameter tube?arrow_forward
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