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An ultrasound probe placed on a patient's chest emits with a frequency of 2,500,000.0 Hz. The...

An ultrasound probe placed on a patient's chest emits with a frequency of 2,500,000.0 Hz. The ultrasound travels through soft human tissue with a speed of 1540.0000 m/s. a) What frequency is "observed" by red blood cells moving toward the probe with a speed of 0.3 m/s? b) When the ultrasound reflects off the oncoming blood cells, it's as if these cells become a source of ultrasound, emitting at the frequency you found in part a. What is the frequency of this reflected wave as observed by a detector on the probe? Keep 8 significant figures.

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