Aglass object receives a positive charge by rubbing it with a silk cloth. in the rubbing process, have protons been added to the object or have electrons been removed from it?

Electrons are the only thing that can freely move from one object to another object. By rubbing the silk cloth on the glass, since the net charge becomes positive, that means that electrons were removed. So answer is : electrons removed.

C. chemical changeshope i : )

The net force is 100