If you climb to the top of a ladder, you have gravitational potential energy than when you are standing on the ground

The gravitational force between two objects is 1600 and what will be the gravitational force between the objects if the distance between them doubles?

The heliocentric and the geocentric models of the solar system included these central principles

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?