Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 4sin(5x)cos(6t) where x is in m and t is in s. What is the approximate frequency of the interfering waves?
A. 3 Hz
B. 1 Hz
C. 6 Hz
D. 12 Hz
E. 5 Hz
Answer: B
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?
?
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