The Challenger Deep Has Previously Been Measured to Have a Depth

The Challenger Deep has previously been measured to have a depth of 10,994 meters.You have been sent to the part of the Pacific Ocean to verify this depth with an echo sounder.Assuming that Depth = 1/2 (1,500 m/sec*echo travel time) , approximately how many seconds should it take for the sound wave to leave your ship, strike the bottom of the Challenger Deep, and return if the depth is correct?

A) 10.5 seconds
B) 14.66 seconds
C) 17.39 seconds
D) 22.67 seconds

Correct Answer:

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