Physics, 29.01.2021 19:20 ninilizovtskt

The moving part of a speaker goes in and out 400 times per second. The frequency of the sound produced is: a
4 hertz.
Ob
40 hertz.
400 hertz.
4,000 hertz.

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The moving part of a speaker goes in and out 400 times per second. The frequency of the sound produc...