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Suppose that the left-traveling pulse in Exercise I5.28 is below the level of the unstretched string instead of above it. Make the same sketches that you did in that exercise. 15.30. Two pulses are moving in opposite directions at 1.0 cm/s on a taut string, as shown in Fig. I5.34.each square is 1.0 cm. Sketch the shape of the string at the end of (a) 6.0 s;
(b) 7.0 s;
(c) 8.0 s.
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