equal and opposite reaction.
The Coulomb force between two or more charged bodies is the force between them due to Coulomb's law. If the particles are both positively or negatively charged, the force is repulsive; if they are of opposite charge, it is attractive. ... Like the gravitational force, the Coulomb force is an inverse square law.
Melting, of course. Just as how an ice cube melts to water.
Mass movement is the movement of surface materials caused by gravity. A great example would be a mud slide.
the key result indicate that how you will achieve the your goal
