A damped harmonic oscillator, with a damping force proportional to its speed, is oscillating with an amplitude of 0.500 cm at t = 0
When t = 8.20 s, the amplitude has died down to 0.400 cm. At what value of t will the oscillations have an amplitude of 0.250 cm?
A)
18.5 s
B)
20.5 s
C)
16.5 s
D)
25.5 s
E)
5.13 s
D
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