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

An astronaut is working outside the International Space Station where the atmospheric pressure is essentially zero. The pressure gauge on her air tank reads 690000 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?

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  1. Explanation:

    Pressure = Force/Area

    Given

    Pressure = 690,000Pa

    Area will be the area of the circular section of the cylindrical tank

    Area of a circle =πd²/4

    Area of a circle =π(0.15)²/4

    Area of a circle = 3.14(0.0225)/4

    Area of a circle = 0.07065/4

    Area of a circle = 0.0176625m²

    Get the force

    Force = Pressure * Area

    Force = 690,000* 0.0176625

    Force = 12,187.125N

    Hence the force applied by the air inside the tank is 12,187.125N

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