What is thefrequency the horns emit

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Reference no: EM13654240

Two automobiles are equipped with the same single-frequency horn.When one is at rest and the other is moving toward an observer at15.6 m/s, a beat frequency of 5.52 Hz is heard. What is thefrequency the horns emit? Assume T = 20°C .

Reference no: EM13654240

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