Answer:
electron dot diagram is the answer to your question.
In the first law, an object will not change its motion unless a force acts on it. So I think the answer is A. Only objects that are moving.
Answer:
0.25 m
Explanation:
a = v² / r
4.0 m/s² = (1.0 m/s)² / r
r = 0.25 m
