y" + cy=sin(2t). (a) For what value of c does resonance occur? Compute the solution at resonance with y(0) = 1 and y'(0) = 0. (b) For what values of c is there a beat with frequency 0.1 Hz? (The beat frequency is defined is the natural frequency of the spring and w is the forcing frequency.) as |- ; μw rad/s where 2 fl 1

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