Question

Suppose a train that has a 150-Hz horn is moving at 35.0 m/s in still air on a
day when the speed of sound is 340 m/s. (a) What frequencies are observed
by a stationary person at the side of the tracks as the train approaches and
after it passes? (b) What frequency is observed by the train's engineer
traveling on the train?
(167Hz, 136Hz)​

Answer 1

Answer:

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