Two waves are described by
?
y1 = 6cos(180t) and y2 = 6cos(186t) (both in meters).
?
With what angular frequency does the maximum amplitude of the resultant wave vary with time?
A. 366 rad/s
B. 6 rad/s
C. 3 rad/s
D. 92 rad/s
E. 180 rad/s
Answer: C
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