A transverse mechanical wave propagating on a string of linear density 15.4 g/m is described by the wave function y(x,t) = 0.1 * cos(5x -6t + 7), where y and x are in meters and t is in seconds. What is the total mechanical energy of the segment of the string located between the points x1=6.9m and x2=14.4 m at the moment of time t=6.6 s?

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A transverse mechanical wave propagating on a string of linear density 15.4 g/m is described by the wave function y(x,t) = 0.1 * cos(5x -6t + 7), where y and x are in meters and t is in seconds. What is the total mechanical energy of the segment of the string located between the points x1=6.9m and x2=14.4 m at the moment of time t=6.6 s?

 
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