8. 8
Three charged particles, A, B, and C, are fixed in place in a line. Charge C is twice as far from
charge B as charge A is. All charges are the same magnitude.
What is the direction of the net force on charge B due to charges A and B?
O No net force

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.