An ultrasound unit is being used to measure a patient's heartbeat by combining the emitted 2.0 mhz signal with the sound waves reflected from the moving tissue of one point on the heart. the beat frequency between the two signals has a maximum value of 560 hz . what is the maximum speed of the heart tissue? the speed of ultrasound waves in human tissue is 1540 m/s.
express your answer to two significant figures and include the appropriate units.
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