physics

What percentage of a floating iceberg’s volume is above water? The specific gravity of ice is 0.917 and the specific gravity of the surrounding seawater is 1.025.

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  1. Let V be the total iceberg volume and v be the volume below water. You want to calculate
    1 - (v/V), expressed as a percent.

    According to Archimedes principle,

    (ice density)*V = (water density)*v

    v/V = 0.917/1.025 = 0.8946
    1 - (v/V) = _____
    Finish the calculation.

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  2. In a Physics laboratory class, an object of mass 2.1 kg, attached by massless strings to two hanging masses, m1= 1.0 kg and m2= 4.0 kg, is free to slide on the surface of the table. the coefficient of kinetic friction between m2 and the table is 0.30. calculate the acceleration of m2.

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