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primary 6 | Maths | Fractions
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Ur mom
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primary 6 chevron_right Maths chevron_right Fractions chevron_right Singapore

This is actually science but I really don’t know how to do it

Date Posted: 3 years ago
Views: 583

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Woon Kiat
Woon Kiat's answer
322 answers (Tutor Details)
1st
Hi, I am not 100% sure. But by tapping the empty can, it will generate vibrations in the air. The moving air cause the plastic cover to vibrate when the moving air touches it.