change in velocity=final velocity-initial velocity=9-3=6m/s
acceleration=change in velocity/time
=6/3=2m/s²
Refraction.
L<span>ight behavior in which light goes through a medium and bends, going in a different direction.</span>
Reflection.
Light behavior in which light waves bounce off a medium and goes in a different direction.
Concave.
A surface shaped in such a way that the center curves inward like this:
Convex.
A surface shaped in such a way that the center curves outward like this:
I just took the test I hope this helps. :)
Weather is what conditions of the atmosphere are over a short period of time, and climate is how the atmosphere "behaves" over relatively long periods of time.