What law or theory can explain the idea that if you are standing on a Earth, satellites move quickly, but if you are standing on another satellite they seem to stay still. Planck’s Law
The big bang theory
The theory of relativity
The theory of space

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

i think it would be 5

+15-35=-20

going in opposite directions

there are no atoms