Question: From a vantage point very close to the track at a stock car race, you hear the sound emitted by a moving car. You detect

From a vantage point very close to the track at a stock car race, you hear the sound emitted by a moving car. You detect a frequency that is 0.86 times as small as the frequency emitted by the car when it is stationary. The speed of sound is 343 m/s. What is the speed of the car?

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