Question: Two trains on separate tracks move toward each other. Train 1 has a speed of 117 km/h; train 2, a speed of 66.0 km/h. Train

Two trains on separate tracks move toward each other. Train 1 has a speed of 117 km/h; train 2, a speed of 66.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1?

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