The function yx t 250 cm cosx - 26t with x in meters and t, Ask an Expert

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The function y(x, t) = (25.0 cm) cos(?x - 26?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant when that point has the displacement y = +22.0 cm? please show answer in m/s and three significant digits.

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