Question

what is vibration?
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Answer 1

Answer:

a periodic motion of the particles of an elastic body or medium in alternately opposite directions from the position of equilibrium when that equilibrium has been disturbed (example: as when a stretched cord produces musical tones or molecules in the air transmit sounds to the ear)

Explanation:

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Answer 2

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Explanation:

Vibration is defined as a rapid to and fro or up and down movement about a mean position. Vibrations travel through a medium such as air and reach our ears where they are interpreted by the brain as sound.