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The observed frequency of a train whistle is497Hzas it approaches a stationary observer and is427Hzas it recedes. Find The speed of the train is 25.75

The observed frequency of a train whistle is497Hzas it approaches a stationary observer and is427Hzas it recedes. Find The speed of the train is 25.75 m/s

Find The natural frequency of the whistle Hz Use 340 m/s as the speed of sound in air.

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