Physics, 24.12.2019 18:31 skylerlorain1
Aultrasonic wave at 8x10^4 hz is emitted into a vien where the speed of sound in blood is 1570 m/s. the wave reflects off the red blood cells moving towards the stationary receiver, if the frequency of the4 returning signal is 8.002x10^4 hz, what is the speed of blood flow?
Answers: 3
is the actual frequency of the sound wave
is the "observed" frequency
is the speed of sound
is the velocity of the observer, which is stationary
is the velocity of the source, which are the red blood cells
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Aultrasonic wave at 8x10^4 hz is emitted into a vien where the speed of sound in blood is 1570 m/s....
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