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Physics - Buoyancy

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A scale reads 20.3 N when an object is not submerged in water and 20.0 N when the object is (completely) submerged in water.

What is the specific gravity of the object?

  • Physics - Buoyancy -

    well, it has .3N of bouyancy.

    that is equivalent to what volume of water?

    solve for volume

    then density= weight/volume=20.3/volume

    and specfic gravity= denstiy/denstiywater.

  • Physics - Buoyancy -

    What is the volume , in L occupied by 50.0 kg ethanol at 20 degree centimeter ? the density of ethanol at 20 degree centimeter is 0.789 g/ml ?

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