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Two train whistles, A and B, each have a frequency of410. A is stationary and B is moving toward the right (away from A) at aspeed of 35.0 .A listener is between the two whistles and is moving toward theright with a speed of 15.0. What is the frequency from A as heard by the listener? What is thefrequency from B as heard by the listener? What is the beat frequency detected by the listener?

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