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College Physics

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Finally, your friend's twin engine jet airplane lands. As it stands on the runway, you hear the sound of the engines getting louder and softer, rhythmically once every 2.3 s. The average frequency you hear is 3650 Hz. What are the differences between the average frequency and the individual frequencies of the sounds from each engine?
flow - favg = ______ Hz

HELP: The rhythmic getting louder and softer that you hear is the phenomenon of beats.

HELP: What is the beat frequency in this case? What is the relationship between the beat frequency and the two frequencies that generate the beats?

HELP: What is the relationship between those two frequencies and the average frequency you hear?

fhigh - favg = _______ Hz

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