A car is parked 23.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, heading directly east at a speed of 54.0 m/s. The train sounds a short blast of its 308-Hz horn when it reaches a point 23.0 m west of the crossing. What frequency does the car's driver hear when the horn blast reaches the car? The speed of sound in air is 343 m/s. (Hint: Assume that only the component of the train's velocity that is directed towards the car affects the frequency heard by the driver.) 54

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A car is parked 23.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, heading directly east at a
speed of 54.0 m/s. The train sounds a short blast of its 308-Hz horn when it reaches a point 23.0 m west of the crossing. What
frequency does the car's driver hear when the horn blast reaches the car? The speed of sound in air is 343 m/s. (Hint: Assume that only
the component of the train's velocity that is directed towards the car affects the frequency heard by the driver.)
H
train
Transcribed Image Text:A car is parked 23.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, heading directly east at a speed of 54.0 m/s. The train sounds a short blast of its 308-Hz horn when it reaches a point 23.0 m west of the crossing. What frequency does the car's driver hear when the horn blast reaches the car? The speed of sound in air is 343 m/s. (Hint: Assume that only the component of the train's velocity that is directed towards the car affects the frequency heard by the driver.) H train
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