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physis

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a cube of wood floating in water support 1 kg mass resting on the center of its top surface. when the mass is removed the cube rise 2.5cm find the length of
cube? ans is 20cm

  • physis -

    mass=massofwaterdisplaced=1g/cm^3(2.5*L^2

    1000=1*2.5*L^2

    L=sqrt400=20cm

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