Can someone please thoroughly explain to me what electric potential energy is??? Please use examples if you can :)

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book.required: distance away from earth or moon

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

The pressure proportional to the area a- inversely b- directly c- increase d-decrease