Answer:
you'll see rocks that have been there for years
Answer: Gravity
Explanation: Gravity is pulling down on the ball, making it stay on the floor
Light is refracted when it crosses the interface from air to glass in which it moves more slowly.
Since the light speed changes at the interface, the wave length of the light must change too. The wave length decreases as the light enter the medium and the light wave changes direction.
= ω²r
