Clue words-
1. vibration
2. medium
3. longitude
4. closer
5. vibration
6. energy
7. 1500
8. parallel
9. 5000 m/s
10. vacuum
11. close
12. 330
13. second
14. child
15. frequency
16. High
17. lots
18. low
Attachments:
avitiya00:
the longitude is changed to longitudinal
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Your question is very nice
what is the answer
ok
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