Two equally negatively charged spheres are placed close to each other. If the distance between the two spheres is tripled, by what factor does the force acting between the spheres
decrease?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

The ph is the a.independent variable b.the dependent variable c.control group