fill in the blanks who will be answered first
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Answered by
2
Answer:
1 to and fro
2vacuum
3 frequency
4 vibrate
5 noise
6 20hertz to 20,000hertz
7 80 dB
Answered by
0
Answer:
1.to,fro
2.vaccum
3.1/10 second
4.frequency
5.vibrate
6.20to20000 Hz
7.80db
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