3. (20 points) For a single degree of freedom damped system under harmonic force, the magnification...

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3. (20 points) For a single degree of freedom damped system under harmonic force, the magnification factor M is found as 1 where r = M = (1-r)+(2) Show the maximum value of M for 0 < 1 M @ W n when r = max 1-252 251-52 3. (20 points) For a single degree of freedom damped system under harmonic force, the magnification factor M is found as 1 where r = M = (1-r)+(2) Show the maximum value of M for 0 < 1 M @ W n when r = max 1-252 251-52