Answer:
1. The field inside the shell is 0; TRUE
2. The field for r>R will be the same as a field for the point charge Q, at the origin: TRUE
3. only positive charges can be on the outside surface: FALSE (Negative can too!!!)
4. The field on the outside is perpendicular to the surface: TRUE
Explanation:
Person a because it stays the same
If an object changes the speed of <u>direction</u>, its velocity also changes. Any change in <u>velocity</u> results in acceleration.
Hope that helps!