Sapose active sonar on a stationary ship is used to determine the speed of a ship that is moving away from it. A sonar ping is emitted at a frequency of 1400Hz, and the echo returns with a frequency of 1390Hz.The speed of sound in sea water is approximately 1500m/s. What is the speed of a ship that is moving away from the stationary ship?
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use the doppler formula in your text.
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