Question: A blood - flow meter emits a 1 . 3 - MHz ultrasound pulse to measure the speed of blood moving directly away from the

A blood-flow meter emits a 1.3-MHz ultrasound pulse to measure the speed of blood moving directly away from the meter. The meters sensor detects the pulse reflected back from the blood at a frequency 22 Hz lower than the emitted frequency. Take the speed of sound in the tissues to be 1475 m/s.

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