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Forced Frequency Homework: Which of These Acts as a Force?
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[QUOTE="rude man, post: 4979111, member: 350494"] Right, all three. The pendulum swings due to initial condition(s), e.g. a finite displacement & then let go. It would continue swinging (assuming no friction) the same way forever. However, since the pendulum touches water at its low point that forces a change to the oscillatory motion. The sound applies a forcing function to the glass, otherwise it would not vibrate unless again a finite initial condition were imposed, e.g. the glass is stresses (bent) and then let go. [/QUOTE]
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Forced Frequency Homework: Which of These Acts as a Force?
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