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Q. You are a deep sea diver and are carrying out pressure test son your air tanks, which is required by inspection rules. A gas cylinder is filled with a gas at a temperature of 300 K and pressure 200000 Pa. The temperature of the gas is then raised to 400 K. What is the new pressure?

Q. A 45.5 kg parachutist lands moving straight downward with a speed of 3.85 m/s.

If the parachutist comes to rest with constant acceleration over a distance of 0.610 m, what force does the ground exerts on her?

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