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02-11-2022
Physics

Answered

the reflection of 2.70 mhz ultrasound waves from the surface of a fetus's beating heart is combined with the 2.70 mhz wave to produce a beat frequency that reaches a maximum of 65 hz . what is the maximum speed of the surface of the heart? the speed of ultrasound waves within the body is 1540 m/s . express your answer with the appropriate units.

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