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GaryK [48]
3 years ago
13

A sonar pulse is sent to the ocean bottom at 25°C, and it takes 1.20 s for the echo to come back. How deep is the bottom?

Physics
1 answer:
Assoli18 [71]3 years ago
4 0
There are several information's of immense importance already given in the question. 
Velocity of sound = 1560 m/s
Time taken for the echo to reach surface = 1.20 second
We already know
Distance = Velocity * Time
               = 1560 * 1.20 meter
               = 1872 meter
So the total distance that the sound travels going down and up = 1872 meter
Then
The depth of the bottom = 1872/2 meter
                                       = 936 meter
                                       = 0.92 km
So the correct option is the second option.
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