Question

A dolphin sends out a sound wave. An echo returns 0.010s later from a fish which is 7.5m from the dolphin.
What is the speed of the sound wave in water?
A 0.075 m / s
B 0.15 m / s
C 750 m / s
D 1500 m / s

Answer 1

here's your answer D

mark my answer brainlies

Sound travels about 1500 meters per second in seawater. Sound travels much more slowly in air, at about 340 meters per second. hello

Answer 2

Answer:

The speed of the sound wave in water is around 750m/s (C)

Explanation:

A dolphin sends out a sound wave .

An echo returns .010s from the fish which is 7.5m from the dolphin

The speed of the sound wave is 7.5/.010

                                                       =750m/s(C)

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