Physics, 28.06.2019 01:00 rleiphart1

Atrain is approaching a signal tower at a speed of 40m/s. the train engineer sounds the 1000-hz whistle, while a switchman in the tower responds by sounding 1200-hz siren. the air still and the speed is 340m/s. what is the frequency of the train whistle tone that is heard by the switchman? 300/340x1000hz 380/340x1000hz 340/300x1000hz 1000hz 340/380x1000hz

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Atrain is approaching a signal tower at a speed of 40m/s. the train engineer sounds the 1000-hz whis...