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 6 s?

Question

(sound speed)* (echo time) = 2 * depth

depth = (sound speed)*(echo time)/2
= 1530 m/s * 6 s * (1/2)= 4590 m

Answer 1

6s = 413

Answer 2

Answer:
4590m

Answer 3

to all these people answering in 2019, this hooman here has probably forgotten all about this, after all, its been 14 years.

Answer 4

yeah all most 15 years

Answer 5

i got the same question so this actually helping me thanks