Two traveling waves are generated on the same taut string. Individually, the two

Question

Two traveling waves are generated on the same taut string. Individually, the two traveling waves can be described by the following two equations:

                y1 (x,t)=(1.49 cm)sin(k1x+(0.348 rad/s)t+Q1)
                y2 (x,t)=(5.78 cm)sin(k2x-(9.35 rad/s)t+Q2)

                If both of the above traveling waves exist on the string at the same time, what is the maximum positive displacement that a point on the string can ever                 have?

                What are the smallest positive values of the unknown phase constants (in radians) such that the above displacement occurs at the origion x=0 and time                 t=1.68s.

                Q1= ( ?   radians) Q2= ( ?   radians)

I can't figure out how to find Q2. Please help!

Explanation / Answer

maximum displacement = 1.49 + 5.78

= 7.27 cm

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