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Physics, 31.07.2019 07:00 dragongacha777
Aboy on a bicycle approaches a brick wall as he sounds his horn at a frequency 400 hz. the sound he hears reflected back from the wall is at a frequency 408 hz. at what is the speed is the boy riding his bicycle toward the wall? assume the speed of sound in air is 340 m/s.
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Aboy on a bicycle approaches a brick wall as he sounds his horn at a frequency 400 hz. the sound he...
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