Use the worked example above to help you solve this problem. A solid lead sphere of volume 0.44 m3, dropped in the ocean, sinks to a depth of 2.0 103 m (about 1 mile), where the pressure increases by about 1.6 107 Pa. Lead has a bulk modulus of 4.2 1010 Pa. What is the change in volume of the sphere?
2. m^3
(a) By what percentage does a similar globe of water shrink at that same depth? (The bulk modulus of water is 2.1 109 Pa.)
3. %

(b) What is the ratio of the new radius to the initial radius? (Give your answer to three significant figures.)


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