Ocean Depth Calculation Using Sonar

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The speed of sound in water is 1498 m/s, and a sonar signal takes 1.80 seconds to return after being emitted. To calculate the ocean depth, the total distance traveled by the sound wave must be determined, which is twice the depth (h) because the signal travels down and back up. The distance traveled is calculated as 1498 m/s multiplied by 1.80 s, resulting in 2696.4 meters. Therefore, the ocean depth (h) is half of this distance, which is 1348.2 meters. This calculation provides the depth of the ocean beneath the ship.
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The speed of sound in water is 1498 m/s. A sonar signal is sent from a ship at a point just below the water surface and 1.80 s later the relfected signal is detected. How deep is the ocean beneath the ship?
 
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If "h" is the ocean depth how far did the sound have to travel so that the reflected signal was heard?
 
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