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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 produced is:

a
4 hertz.
Ob
40 hertz.
400 hertz.
4,000 hertz.

User RVN
by
5.5k points

1 Answer

9 votes
40 hertz. Because umm 400 Thame off a zero it’s 40
User Holz
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