12. A satellite is put into an orbit at a distance from the center of the Earth equal to twice the distance from the center of t
he Earth to the surface. If the satellite had a weight at the surface of 4000 N, what is the force of gravity (weight) of the satellite when it is in its orbit? Give your answer in newtons, N.
The current is defined as the amount of charge Q that passes through a given point of a wire in a time : Since I=500 A and the time interval is the charge is
One electron has a charge of , therefore the number of electrons that pass a point in the wire during 4 minutes is electrons
:
, therefore the number of electrons that pass a point in the wire during 4 minutes is
electrons