Question
An echocardiogram uses 4.4 MHz ultrasound to measure blood flow in the aorta. The blood is moving away from the probe at 1.4 m/s. What is the frequency shift of the reflected ultrasound?
Step 1
4 \times 10^6$ Hz, the speed of the object $v = 1.4$ m/s, and the speed of sound in the medium $v_s = 1540$ m/s. We are asked to find the frequency shift $\Delta f$. Show more…
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