Wednesday, August 6, 2014

waves - How is energy conserved in resonance?


According to Wikipedia,



[...] resonance is a phenomenon that occurs when a vibrating system or external force drives another system to oscillate with greater amplitude at a specific preferential frequency.




Can anyone please explain why it happens? And how is energy conserved in resonance?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

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