The force, F, acting on a charged object varies inversely to the square of its distance, d, from another charged object. When the two objects are 0.65 meters apart, the force acting on
them is 5.2 Newtons. Approximately, how much force would the object feel if it is at a
distance of 0.5 meters apart?

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.