Doppler uses ultrasound to measure blood flow velocities. Assume that the device emits sound at a frequency of 3.2MHz, and that the speed of sound in human tissue is 1540 m/s What is the expected pulse rate if blood flows in the arteries of the large leg at a speed of 3) cm/s away from the source of the sound

Principles of Physics: A Calculus-Based Text
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Chapter13: Mechanical Waves
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Doppler uses ultrasound to measure blood flow velocities. Assume that the device emits
sound at a frequency of 3.2MHz, and that the speed of sound in human tissue is 1540 m/s
What is the expected pulse rate if blood flows in the arteries of the large leg at a speed of 3)
cm/s away from the source of the sound
O 1260 Hz
126 Hz
O 12.6 Hz
O 12.6 kHz
O 126 kHz
O 1260 kHz
1.26MHz 0
Transcribed Image Text:Doppler uses ultrasound to measure blood flow velocities. Assume that the device emits sound at a frequency of 3.2MHz, and that the speed of sound in human tissue is 1540 m/s What is the expected pulse rate if blood flows in the arteries of the large leg at a speed of 3) cm/s away from the source of the sound O 1260 Hz 126 Hz O 12.6 Hz O 12.6 kHz O 126 kHz O 1260 kHz 1.26MHz 0
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