A hiker walks 27.0km from her base camp at 35 degrees south of east. The next day, she walks 41.0 km in a direction 65 degrees north of east and discover a forest ranger tower. Find the direction and magnitude of her resultant displacement between the base camp and the tower.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.