Answer:
C
Explanation:
hope for help ....im expert
Current.A moving charge is an object that changes position to one particular obsever.
I looked up the question and got D- a vacuum
In order to create a charged object you need to transfer electrons either away or to the object by induction, conduction, or friction
Induction is without contact(like bringing a charged object to a electroscope charges the leaves at the bottom)
Conduction is with contact(like the previous answer, wore touching transfers the charge from a source to the object)
Friction(rubbing a balloon on wool)
Measure a whole stack (one in which you know the number of sheets), then divide your measurement by the number of sheets in that stack
