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If the radio waves that are sent from the speed gun have a frequency of 400,000,002 Hz and the radio waves reflected off an approaching car have a frequency of 400, 000, 10 , what is the speed of the car? (Hz is the SI unit of frequency, equal to cycles per second).

Sagot :

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Answer:

fL = fs(V/v-vs) 400000002= 40000010(331/331- vs). then find vs so easy

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