How are Particles in solids, liquids, and gases the same? how are they different

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

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