Physics
Fluid-Mechanics
Easy

Question

Iceberg floats in sea water with a part of it submerged. The percentage fraction of the ice berg submerged is (Density of ice equals 0.9 g c m to the power of negative 3 end exponent, density of sea water equals 1.1 g c m to the power of negative 3 end exponent)

  1. 18% 
  2. 12% 
  3. 10% 
  4. 8% 

The correct answer is: 18%


    table attributes columnalign left end attributes row cell V rho subscript i c e end subscript g equals left parenthesis V minus x right parenthesis rho subscript text sat waer  end text end subscript g end cell row cell text  or  end text V cross times 0.9 cross times g equals left parenthesis V minus x right parenthesis 1.1 g text  or  end text 0.9 V equals 1.1 V minus 1.1 x end cell end table
table attributes columnalign left end attributes row cell 0.2 V equals 1.1 x therefore x over V equals fraction numerator 0.2 over denominator 1.1 end fraction end cell row cell x over v cross times 100 equals fraction numerator 0.2 over denominator 1.1 end fraction cross times 100 equals 18 percent sign end cell end table

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