Estimate the frequency observed by a person on platform

Reference no: EM13653881

A commuter train blows its horn as it passes a passenger platformat a constant speed of 40.0 m/s. The horn sounds at a frequency of320 Hz when the train is at rest. What is the frequency observed bya person on the platform

(a) as the train approaches

(b) as the train recedes from him?

Reference no: EM13653881

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