A stationary submarine using sonar emits a 1080 Hz sound wave that reflects off of an object moving towards the sub. The reflected sound is mixed with the 1080 Hz sound and a beat frequency of 80 Hz is observed. The speed of sound in water is 1400 m/s. How fast is the object moving
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A stationary submarine using sonar emits a 1080 Hz sound wave that reflects off of an object moving...
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