Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above
another, the repulsive force can be great enough to
support the top piece’s weight. Assuming equal point
charges (only an approximation), calculate the
magnitude of the charge if electrostatic force is great
enough to support the weight of a 10.0 mg piece of tape
held 1.00 cm above another.

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.