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QUESTION
A dolphin in 25C sea water emits a sound directed toward the bottom of the ocean 390 m below. How much time passes before it hears an echo?
A dolphin in 25C sea water emits a sounddirected toward the bottom of the ocean 390m below.How much time passes before it hears anecho? The speed of sound in sea water is1530 m/s.Answer in units of s.
