Asked by Ken

An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that
travel 1530 m/s in seawater.
How deep is the water directly below the vessel if the time delay of the echo to the ocean floor and back is 7 s? Answer in units of m. Is it 1530*7?
Answered by Scott
the delay time is down and back ... twice the depth
Answered by Ken
so it's 1530*14?
Answered by Steve
No, it takes 7 seconds to make the round trip.

Stop guessing and start calculating.
Answered by Ken
i think the answer is 5355m
Answered by Steve
That's better
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