Distance:
Distance is how
how
an object has moved.

Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. half way betwween the two plates the electric field has magnitude e. if the separation of the plates is reduced to d/2 what is the magnitude of the electric field half way between the plates?

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

When you turn on a battery-operated device, an electrical circuit is