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10. A sonar echo returns to a submarine 1.22 s after being emitted. What is the...

10. A sonar echo returns to a submarine 1.22 s after being emitted. What is the distance to the object creating the echo? (Assume that the submarine is in the ocean, not in fresh water.)

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Answer #1

speed of sound in water = 1480 m/s

total distance travelled by sound wave = 2d

distance = speed* time

2d = 1480*1.22

d = 451.4 m

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