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While floating in the ocean, a dolphin emits a sound wave directed toward the hull of an ocean liner d = 322 m away. How long (in s) until the dolphin hears an echo? Assume the water temperature is 25∘C, and the speed of sound in the water is 1,533 m/s.

While floating in the ocean, a dolphin emits a sound wave directed toward the hull of an ocean liner d = 322 m away. How long (in s) until the dolphin hears an echo? Assume the water temperature is 25∘C, and the speed of sound in the water is 1,533 m/s.

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While floating in the ocean, a dolphin emits a sound wave directed toward the hull of an ocean liner d = 322 m away. How long (in s) until the dolphin hears an echo? Assume the water temperature is 25 ∘ C , and the speed of sound in the water is 1 , 533 m / s . ◻

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