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Lec27 - Lecture 27 Wednesday Chapter 13 Periodic Motion...

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Lecture 27 Wednesday 10/28/09 Chapter 13 Periodic Motion, Simple Harmonic Motion Periodic motion repeats itself periodically The length of time for a cycle of oscillation is the period T The frequency is the number of cycles per second: f = 1/ T Simple harmonic motion “Simple harmonic” = a single sine or cosine function of time e.g., x = A cos( ± t ) Energy in simple harmonic motion Text supplement: Chapter 1 in “Waves” Simulation: Mass on a spring laboratory
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