5. A police car siren emits a frequency of 3900 Hz while driving down the road at a speed of 27.4. What frequency will a person driving a car at 20.7 m in the opposite direction behind the police car hear?

5. A police car siren emits a frequency of 3900 Hz while driving down the road at a speed of 27.4. What frequency will a person

driving a car at 20.7 m in the opposite direction behind the police car hear?
fobs =
Hz

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