Posted by **Anonymous** on Tuesday, April 22, 2008 at 9:58am.

Question: A damped harmonic oscillator loses 5.0 percent of its mechanical energy per cycle.

a) By what percentage does its frequency differ from the natural frequency w = sqr(k/m)?

b) After how may periods will the amplitude have decreased to 1/e of its original value?

What equations do I use? I know the final answers are 8.3 * 10^-4 percent and 39 periods. I know that 0.95A is the initial at time T. . .

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