Posted by Andy on Wednesday, January 6, 2010 at 10:52pm.
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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