An echo is sound that returns to you after being reflected from a distant surface (e.g., the
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An echo is sound that returns to you after being reflected from a distant surface (e.g., the side of a cliff ). Assuming that the distances involved are the same, an echo under water and an echo in air return to you ________________.
(a) At different times, the echo under water returning more slowly
(b) At different times, the echo under water returning more quickly
(c) At the same time
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Physics
ISBN: 9781119539636
11th Edition
Authors: John D. Cutnell, Kenneth W. Johnson, David Young, Shane Stadler
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