When velocity is zero and acceleration is negative, what happens to the object's motion?

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)