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Two sinusoidal waves traveling on the same
string are described by the wavefunctions:
y_1=Asin(kx-wt) and y_2=Asin(kx-wt+p).
Which of the following values for p
corresponds to a resultant amplitude equal
to 3A/2?
O 1.44 rad
2.89 rad
2.37 rad
O 2.64 rad

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