Answer
4 Hz
Work Step by Step
Beat frequency $f_{b}=|f_{1}-f_{2}|=|436\,Hz-440\,Hz|=4\,Hz$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 14 - Sound - Learning Path Questions and Exercises - Exercises - Page 526: 47
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