How much time passes before it hears an echo

Reference no: EM13270873

A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 105 m below. How much time passes before it hears an echo?

Reference no: EM13270873

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How much time passes before it hears an echo : A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 105 m below

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