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3. [-/1 Points] DETAILS SERCP11 21.13.P.065. MY NOTES ASK YOUR TEACHER Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at

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3. [-/1 Points] DETAILS SERCP11 21.13.P.065. MY NOTES ASK YOUR TEACHER Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a vehicle and detecting a Doppler shift in the reflected wave. Suppose a police radar transmits at a frequency of 25.0 GHz and receives a wave reflected from a car moving toward the radar at 66.0 mph. Find the frequency shift Af = fo - f (in Hz) between the observed (received) and source (transmitted) frequencies. HINT Hz Submit Answer View Previous Question Question 3 of 7 View Next

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