Consider a sign suspended on a boom that is supported by a cable, as shown. What is the proper equation to use for finding the net force in the y direction? Fnety = (FT)(sin 32°) + Fg Fnety = (FT)(sin 32°) – Fg Fnety = (FT)(cos 32°) + Fg Fnety = (FT)(cos 32°) – Fg

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.