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Figure 16-54 shows the displacement y ve...

Figure 16-54 shows the displacement y versus time t of the point on a string at x=0, as a wave passes through that point. The scale of the y axis is set by `y_(s)=6.0 mm`. The wave has form `y(x,t)=y_(ln) sin (kx-omega t+phi)." What is the "phi?`

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The correct Answer is:
(a) 2s (b) 3s; (c) `2 xx 10^(-3)N`
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