Question: The Doppler effect using ultrasonic waves of frequency 2.25 X 106 Hz is used to monitor the heartbeat of a fetus. A (maximum) beat frequency

The Doppler effect using ultrasonic waves of frequency 2.25 X 106 Hz is used to monitor the heartbeat of a fetus. A (maximum) beat frequency of 500 Hz is observed. Assuming that the speed of sound in tissue is 1.54 X 103 m/s, calculate the maximum velocity of the surface of the beating heart.

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