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The sound wave emitted by an airplane reaches the ocean surface with an angle of incidence of 7.1 degrees and is partially reflected and partially

The sound wave emitted by an airplane reaches the ocean surface with an angle of incidence of 7.1 degrees and is partially reflected and partially transmitted into the water. Because of the atmospheric conditions at this location, the speed of sound is 333 m/s in the air and 1479 m/s in the water. What is the angle between the directions of propagation of reflected and transmitted sound?

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