An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that

Question

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?

Answer 1

the delay time is down and back ... twice the depth

Answer 2

so it's 1530*14?

Answer 3

No, it takes 7 seconds to make the round trip.

Stop guessing and start calculating.

Answer 4

i think the answer is 5355m

Answer 5

That's better