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Dennis_Churaev [7]
3 years ago
11

When a ball is rolling down a hill, what forces are acting on the ball? Why does it speed up?

Chemistry
2 answers:
Blizzard [7]3 years ago
7 0

Answer:

the gravity speed up because the friction didn't speed up

Margaret [11]3 years ago
3 0

Answer:gravity

Explanation:

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Avogadro's number is the number of units (atoms, molecules) in 1 mole of substance:

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