Police use radar guns and the Doppler effect to catch speeders. The figure below illustrates a moving car approaching a stationa police car. A radar gun emits an electromagnetic wave that reflects from the oncoming car. The reflected wave returns to the pol car with a frequency (measured by on-board equipment) that is different from the emitted frequency. One such radar gun emits. wave whose frequency is 8.0 x 10° Hz. When the speed of the car is 27.0 m/s and the approach is essentially head-on, what is the difference between the frequency of the wave returning to the police car and that emitted by the radar gun?

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Chapter1: Units, Trigonometry. And Vectors
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Police use radar guns and the Doppler effect to catch speeders. The figure below illustrates a moving car approaching a stationary
police car. A radar gun emits an electromagnetic wave that reflects from the oncoming car. The reflected wave returns to the police
car with a frequency (measured by on-board equipment) that is different from the emitted frequency. One such radar gun emits a
wave whose frequency is 8.0 x 10° Hz. When the speed of the car is 27.0 m/s and the approach is essentially head-on, what is the
difference between the frequency of the wave returning to the police car and that emitted by the radar gun?
アファファ
Reflected
Outgoing
electromagnetic
electromagnetic
wave
wave
Number
i
0.00000072
Units
Hz
eTextbook and Media
Type here to search
81°F
DELL
Transcribed Image Text:X Incorrect. Police use radar guns and the Doppler effect to catch speeders. The figure below illustrates a moving car approaching a stationary police car. A radar gun emits an electromagnetic wave that reflects from the oncoming car. The reflected wave returns to the police car with a frequency (measured by on-board equipment) that is different from the emitted frequency. One such radar gun emits a wave whose frequency is 8.0 x 10° Hz. When the speed of the car is 27.0 m/s and the approach is essentially head-on, what is the difference between the frequency of the wave returning to the police car and that emitted by the radar gun? アファファ Reflected Outgoing electromagnetic electromagnetic wave wave Number i 0.00000072 Units Hz eTextbook and Media Type here to search 81°F DELL
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