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Today, 03:45

A ship sends out a pulse of sound and receives an echo back one second later. If the water is 750m deep, what is the speed of sound in water?

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  1. Today, 04:26
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    1500 m/s

    Explanation:

    The sound wave travels 750 meters from the ship to the bottom of the water, then 750 meters back to the ship. So it travels a total distance of 1500 meters in 1 second.

    So the average speed is:

    v = 1500 m / 1 s

    v = 1500 m/s
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