You are swimming 1 m below the surface of a swimming pool and at some moment dive even deeper, reaching the depth of 2 m. During this process, the absolute pressure exerted on your ears:
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You are originally 1.0 m beneath the surface of a pool. If you dive to 2.0 m beneath the surface, what happens to the absolute pressure on you? A. It does not change. B. It less than doubles. C. It more than doubles. D. It quadruples. E. It doubles.
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If you dive under water, you notice an uncomfortable pressure on your eardrum due to the increased pressure.
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Use the worked example above to help you solve this problem. Estimate the net force exerted on your eardrum due to the water above when you are swimming at the bottom of a pool that is 5.2 m deep. EXERCISE An airplane takes off at sea level and climbs to a height of 500 m. Estimate the net outward force on a passenger's eardrum assuming the density of air is approximately constant at 1.3 kg/mÂł and that the inner ear pressure hasn't been equalized. What is the air pressure inside the eardrum? What is the air pressure outside the eardrum? What is the approximate area of the eardrum? How do these combine to find the net force due to air pressure?
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