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Q. A 62.00 kg skier is going down a slope oriented 33° above the horizontal. The area of each ski in contact with the snow is 0.13 m2. Determine out the pressure that each ski exerts on snow.

Q. A container of volume 23 cm3 is initially filled with air. The container is after that evacuated at 0oC to a pressure of 30 mPa. How many molecules are in the container after evacuation if we suppose that air is an ideal gas?

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