Physics, 29.08.2019 20:00 Queenhagar

Amodel airplane traveling at 5 m/s approaches you. the frequency of the hum produced by the motor is 652 hz. assume the speed of sound to be 342 m/s. what is the observed frequency of the hum?
643 hz
647 hz
657 hz
662 hz

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Amodel airplane traveling at 5 m/s approaches you. the frequency of the hum produced by the motor is...