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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?

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

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

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5 answers

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

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  2. Answer:
    4590m

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  3. yeah all most 15 years

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  4. i got the same question so this actually helping me thanks

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  5. 6s = 413

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