# physics

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The speed of sound in water is 1498 m/s. A sonar signal is sent straight down from a ship at a point just below the water surface, and 1.95 s later, the reflected signal is detected. How deep is the water?

• physics -

depth is d
total distance traveled = 2d

2d = 1.95s * 1498m/s = 2921.1 m
d = 1460.55 m

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