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Musya8 [376]
3 years ago
11

BRAINLIEST ANSWER!

Chemistry
1 answer:
yaroslaw [1]3 years ago
5 0
1. take 20 * 0.5 to get 10 m/s

2. 0.8/0.4 = 2 Hz
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<em>Hope this helps, mark as Brainliest please...</em>

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no need to show work i am a teacher at a college


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