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March 27, 2017

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When an iceberg floats in the ocean, what fraction of it is visible?( The relative density of ice is 0.92, and the relative density of sea water is 1.03)

  • gr.11 physics help! - ,

    Use Archimedes' Principle.

    Let the volume of the iceberg be V. The amount below water (V') must displace a weight of sea water equal to the weight of the iceberg.

    seawater density x V' = ice density * V

    1.03*V' = 0.92*V

    V'/V = fraction below water = 0.89

    Fraction above water = 1 - V'/V = 0.11

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