Question: Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other is moving toward the first at 15m/s. The

Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other is moving toward the first at 15m/s. The driver at rest hears a bear frequency of 5.5Hz. What is the frequency the horns emit? Assume T = 20oC.

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