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Grade: 11
        The specific gravity of seawater is 1.03 and that of ice is 0.92 .What fraction of an ice berg is above the surface of water?
one year ago

Answers : (1)

Arun
22750 Points
							
Dear student
 
Let mass of iceberg be m. In terms of volume V, m = V*0.92 

Let portion immersed be of volume V1, then it also displaces the same VOLUME of seawater. By Archimedes Principle, the buoyance force is density of seawater * V1. 

At equilibrium 
mg = 1.03*V1*g 
0.92*V*g = 1.03*V1*g 
So, V1/V = 0.92/1.03 = 0.8932

Volume above seawater = 0.106 of total VOLUME
 
 
 
Regards
Arun (askIITians forum expert)
one year ago
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