A wave on a string is is described by D(x, t) = (2 cm) sin[(12.57 rad/m)x-(638 rad/s)t], where x is in m and t in s. The linear density of the string is 5g/m. What are (1) the string tension? (2) the maximum displacement of a point on the string? (3) the maximum speed of a point on the string?
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