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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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A neutral atom of sodium (Na) has an atomic number of 11 and a mass number of 23. How many neutrons would be found in the nucleu
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<h3>Answer:</h3>

12 neutrons

<h3>Explanation:</h3>
  • A neutral atom is an atom that has no charge, which means it has no additional electrons or electrons removed from its energy levels.
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  • The number of protons in the nucleus of a neutral atom is known as the atomic number.
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Therefore;

Protons = Atomic number

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In this case;

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Mass number = 23

Thus;

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