Show that refractive index of the medium y respect to x is equal to the reciprocal of the refractive index of x with respect to y.

If you mix chlorine lithium and nickel together which two elements would be the most reactive

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life