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A submerged scuba diver Figure 16.39 Exercise 16.1.Hears the sound of a boat horn directly above her on the surface of the lake. At the same time, a friend on dry land 22.0 m from the boat also hears the horn (Fig. 16.39). The horn is 1.2 m above the surface of the water. What is the distance (labeled by “?” in Fig. 16.39) from the horn to the diver? Both air and water are at 20oC.
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