Question

why can't we hear the vibration of a pendulum?
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Answer 1

Answer:

Here is your answer

Explanation:

When a pendulum swings from side to side it will obviously collide with the air particles in the air and they might vibrate a bit too producing some sound . But we don't hear it. The vibration do reach our ears , but only because we can only hear from 20Hz to 20,000 Hz we cannot hear it.

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