PHYSICS

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A 30 kg. balloon is filled with 100 m to the third power of helium. how much force is needed to hold it down?

  • PHYSICS -

    bouyancy force = weightairin100m^3-weightHein100m^3

    force needed=bouyancy force-30kg*g

    how do you get the weight? YOu need to make assumptions about pressure and temperature.

  • PHYSICS -

    0.81 KN

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