The correct answer is going to be <span>C, because in the nucleus of an atom there are protons and electrons; which can't move, and are surrounded by electrons on the electrical cloud</span>
Answer:

Explanation:
Given

r=2cm
Now angular velocity is given by 

Now linear velocity(v) is given =

Now tangential component of acceleration is given by

at t=0

radial component of acceleration is given by



at t=0

Answer:
Acceleration (b) not sure tho
Explanation:
"Average velocity" is the vector among the choices given in the question that describes <span>how fast an object moves over a long time interval. The correct option among all the options that are given in the question is the last option or the fourth option. I hope the answer has helped you.</span>