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July 6, 2015

Homework Help: Physics

Posted by Ike on Friday, January 31, 2014 at 11:19pm.

For non-ideal oscillators (such as a real pendulum) energy is lost and the amplitude (which is the maximum displacement) is no longer constant but also decreases with time. How fast the energy lost is described by a TIME CONSTANT, τ = m/b. Typically after ONE time constant has elapsed, the system has ...(hint: this is when t = τ)
a)LOST half of its initial energy.
b)LOST 63% of its initial energy.
c)LOST 13% of its initial energy.
d)LOST 37% of its initial energy.
Thank you!

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