Now return to the original cylinder. using newton's 2nd law, complete the equation of motion in the vertical direction j^ that describes the translational motion of the cylinder. express your answer in terms of the tension t in the vertical section of string, m, and g; a positive answer indicates an upward acceleration.

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.