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RUphysics3
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Homework Statement
Two sinusodial waves, each of wavelength 5m and amplitude 10cm, travel in opposite directions on a 20m streched string which is clamped at each end. Excluding the nodes at the ends , how many nodes appear in the resulting standing wave?
Homework Equations
The Attempt at a Solution
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So I just drew a picture, 20m long string, and drew a wave through it with each wavelength being 5m. I basically disregarded that there were two separate waves. I still got the right answer. Is the fact that they collide irrelevant? Why?