Physics, 10.12.2019 09:31 joannakawata6
Atrain traveling 80.0 kph is blowing its horn as it approaches a railroad crossing. the horn has a frequency of 300.0 hz. assume the speed of sound is 331.5 m/s. what is the observed frequency of the horn?
395 hz
281 hz
322 hz
Answers: 3
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Atrain traveling 80.0 kph is blowing its horn as it approaches a railroad crossing. the horn has a f...
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