The displacement of a standing wave on a string is given by, Ask an Expert

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the displacement of a standing wave on a string is given by D = 2.8sin(0.70x)cos(55 t), where x and D are in centimeters and t is in seconds. Give the speed of each of the component waves. Find the speed of a particle of the string at x = 2.50cm when t =1.9s.

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