Why is centrifugal force in a rotating frame called a fictitious force?

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

The energy released by a nuclear fusion reaction is produced when

The radius of an atom is closest in size to a