section 8.5 simple harmonic motion; damped motion; combining waves
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Section 8.5 Simple Harmonic Motion; Damped Motion; Combining Waves. Frequency. - PowerPoint PPT PresentationTRANSCRIPT
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Section 8.5Simple Harmonic Motion;
Damped Motion;Combining Waves
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Frequency
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Suppose that an object attached to a coiled spring is pulled down a distance of 5 inches from its rest position and then released. If the time for one oscillation is 3 seconds, write an equation that relates the displacement d of the object from its rest position after time t (in seconds). Assume no friction.
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d = 25 cos (4t)
(a) The motion is simple harmonic.
(b) Maximum displacement is = 25 meters.a
2 2(c) Period seconds4 2
2(d) Frequency = oscillations per second2
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Select several values of x and compute f1(x), f2(x) and f(x) = f1(x) + f2(x).
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