An astronaut is working outside the International Space Station where the atmospheric pressure is essentially zero. The

Question:

An astronaut is working outside the International Space Station where the atmospheric pressure is essentially zero. The pressure gauge on her air tank reads 6.90 x 106 Pa. What force does the air inside the tank exert on the flat end of the cylindrical tank, a disk 0.150 m in diameter?

Strategy

We can find the force exerted from the definition of pressure given inP = - A provided we can find the area A acted upon.

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