Two train whistles, A and B, each have a frequency of 392 Hz. A is stationaryand B is moving toward the right (away from A) at a speed of 35.0 m/s. A listener isbetween the two whistles and is moving toward the right with a speed of 15.0m/s. (SeeFigure given). No wind is blowing.U = 0Uy = 35.0 m/sUL15.0 m/sAB1. What is the frequency from A as heard by the listener?2. What is the frequency from B as heard by the listener?3. What is the beat frequency detected by the listener?

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Answered: Two train whistles, A and B, each have…

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