Asked by julie
A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is sounded at its characteristic frequency of 320 Hz. What overall change in frequency is detected by a person on the platform as the train moves from approaching to receding?
Answers
Answered by
drwls
2 (V/a)*fo = (80/340)*320 Hz
assuming a = 340 m/s is the speed of sound.
There is a more accurate formula for moving sources and stationary observers, but this should be close enough
assuming a = 340 m/s is the speed of sound.
There is a more accurate formula for moving sources and stationary observers, but this should be close enough
Answered by
Anonymous
A commuter train passes a passenger platform at a constant speed of 40.8 m/s. The train horn is sounded at its characteristic frequency of 320 Hz.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.