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PLZ HELP ME.................
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Oct 19, 2018
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PLZ HELP ME.................
Chemistry
middle-school
Tiberiu Maxim
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Tiberiu Maxim
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Electromagnetic waves can go through a vacuum and mechanical cannot.
Electromagnetic can go through mediums by themselves, mechanical can't.
Nikunj Chaklasiya
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Oct 25, 2018
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Nikunj Chaklasiya
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