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.

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s