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A transverse harmonic wave on a string i...

A transverse harmonic wave on a string is described by y(x. t) = 3.0 sin (36 t + 0.018 x + `(pi//4))` where x and y are in cm and tin s. The positive direction of x is from left to right. Is this a travelling wave or a stationary wave ? If it is travelling, what are the speed and direction of its propagation ?

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