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A wave moving with constant speed on a u...

A wave moving with constant speed on a uniform string passes the point `x=0` with amplitude `A_0`, angular frequency `omega_0` and average rate of energy transfer `P_0`. As the wave travels down the string it gradually loses energy and at the point `x=l`, the average rate of energy transfer becomes. At the point `x=l`. Angular frequency and amplitude are respectively:

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