A stationary source is emitting sound at a fixed frequency f which is reflected by two cars approaching the source The

Question

A stationary source is emitting sound at a fixed frequency f which is reflected by two cars approaching the source The difference between the frequencies of sound reflected from the cars is 1 2 of fo What is the difference in the speeds of the cars in km per hour to the nearest integer The cars are moving at constant speeds much smaller than the speed of sound which is 330 ms YOUR ANSWER 1 1

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