Which ray diagram correctly illustrates what happens when light is incident from air onto a flat glass surface? The dotted line represents the normal.
First CORRECT answer will get brainliest!!

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Is a volume of space that is empty of matter.