What is the best description of the destructive interference of light? A. The crests of two waves intersect.

B. A longitudinal wave meets a transverse light wave.

C. The crest of one wave overlaps with the trough of another.

D. A mechanical wave meets an electromagnetic wave.

Air can be considered a mixture. which statement does not explain why?

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.

Who discovered a pattern to the elements in 1869?