Please answer this question to get 20 points
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Answered by
0
Answer:
20
Explanation:
acceleration =force\mass
a=30/15=2
30-F =5(2)
20=F
Answered by
1
Answer:
When a match is struck, friction heats the head to a temperature at which the chemicals react and generate more heat than can escape into the air, and they burn with a flame. If a wind blows away the heat or the chemicals are moist and friction does not raise the temperature sufficiently, the match goes out.
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