Find the frequency heard by the engineer on train

Reference no: EM13498361

Two trains on separate tracks move toward one another. Train 1 has a speed of 130km/hr and train 2 has a speed of 90km/hr. Train 2 blows its horn, emitting a frequency of 500Hz. What is the frequency heard by the engineer on train ? (please show work for credit)

Reference no: EM13498361

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