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13.11.2020 •
Chemistry
Is the second one or the fourth one?
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Ответ:
D. Light waves travel fastest through a vaccumm
Explanation:
"In a vacuum , light waves move their fastest: 186,000 miles per second (300,000 kilometers per second). This is also the fastest that anything in the universe moves. But when light waves move through air, water or glass, they slow down."
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Ответ:
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