Chapter 12, Problem 12.92PP

If the elephant were to snorkel in salt water, which is more dense than freshwater, would the maximum depth at which it could snorkel be different from that in freshwater? (a) Yes—that depth would increase, because the pressure would be lower at a given depth in salt water than in freshwater; (b) yes—that depth would decrease, because the pressure would be higher at a given depth in salt water than in freshwater: (c) no, because pressure differences within the submerged elephant depend on only the density of air; not the density of the water; (d) no, because the buoyant force on the elephant would be the same in both cases.