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olchik [2.2K]
3 years ago
6

Which is NOT an example of evidence that shows a chemical reaction occurred?

Physics
1 answer:
Wittaler [7]3 years ago
4 0
Change in color
Change in color is a physical reaction
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Not sure what you mean but I think you are either talking about a lunch box or a thermos 
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An observation is received directly or indirectly by
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All of the above

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A tourist drops (from rest) a ping pong ball from the top of the tower, which has a height of 324 meters. Assuming no air resist
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8.13secs

Explanation:

From the question weal are given

Height H =324m

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time it takes to drop t

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H = ut + 1/2gt²

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324 = 0(t)+1/2(9.8)t²

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