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A wave is described by the formula x(t) = (0.23 m) cos( 1,380t- 255x) Assuming the wave number, k, and angular frequency, w, are

A wave is described by the formula x(t) = (0.23 m) cos( 1,380t- 255x) Assuming the wave number, k, and angular frequency, w, are in SI units, calculate the speed of the wave in m/s with a single digit precision. Hint: remember that v = fx

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