A stationary motion detector sends sound waves of 07
A stationary motion detector sends sound waves of 0.7 MHztoward a truck approaching at a speed of 55.0 m/s. The speed ofsound in the air is 343 m/s. What is the frequency of the waves reflected back to the detector?
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a stationary motion detector sends sound waves of 07 mhztoward a truck approaching at a speed of 550 ms the speed
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