у (ст) 24 1- x (cm) 0- -1- у (cm) 2- 1- 0- 10 15 T (ms) 20 FIGURE P15.22
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As shown snapshot (left) and history (right) graphs for a wave traveling on a string. The snapshot graph shows the wave at t = 0 s; the history graph shows the displacement of the point on the string at x = 1.5 cm, indicated by the dot in the snapshot graph. What is the speed of the wave, and in which direction is it traveling?
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