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Posted by on Saturday, July 13, 2013 at 8:49pm.

A board that is 20 cm wide, 5 cm thick, and 3 m long has a density of 350 kg/m^3. The board is floating partially submerged in water do density 100 kg/m^3. What fraction of the volume of the board is floating above water?;

  • physics - , Sunday, July 14, 2013 at 7:00pm

    Density of water = 1000kg/m^3.

    V = 3m * 0.20m * 0.05m = 0.03 m^3=Vol.
    of board.

    1 - (350/1000) = 0.65 = 13/20.

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