Two train whistles, A and B, each have a frequency of 392
Chapter 16, Problem 16.45(choose chapter or problem)
Two train whistles, A and B, each have a frequency of 392 Hz. A is stationary and B is moving toward the right (away from A) at a speed of A listener is between the two whistles and is moving toward the right with a speed of (Fig. E16.45). No wind is blowing. (a) What is the frequency from A as heard by the listener? (b) What is the frequency from B as heard by the listener? (c) What is the beat frequency detected by the listener?
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