Two cars approaching each other, the first car is a police car that moves at 72 km/h while the second car moves at 90 km/h, the police car started its siren with a frequency of 650 Hz. If the speed of the sound is 350 m/s, then what is the frequency of the sound heard by the driver of the second car from the police car?
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Two cars approaching each other, the first car is a police car that moves at 72 km/h while the secon...
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