The ratio of the apparent frequencies of a car when approaching and receding a stationary observer is 11 : 9. What is the speed of the car

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The ratio of the apparent frequencies of a car when approaching and receding a stationary observer is 11 : 9. What is the speed of the car, if the velocity of sound in air is 300 m/s ?
07
Nov
The ratio of the apparent frequencies of a car when approaching and receding a stationary observer is 11 : 9. What is the speed of the car, if the velocity of sound in air is 300 m/s ? if the velocity of sound in air is 300 m/s ? The ratio of the apparent frequencies [...]
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