Question: A rock has a narrow crack (width 1.0 mm) into which water can penetrate. When this water freezes, it expands. (a) Estimate the pressure on

A rock has a narrow crack (width 1.0 mm) into which water can penetrate. When this water freezes, it expands. 

(a) Estimate the pressure on the rock when the water freezes. 

(b) What is the corresponding force on a rock surface that has an area of 1.0 cm2? 

(c) Compare the force to your weight.

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