Scientists are drilling a hole in the ocean floor to learn more about the earth's history. currently, the hole is in the shape of a cylinder whose volume is approximately 3500 cubic feet and whose height is 4.3 miles. find the radius of the hole to the nearest hundredth of a foot. (hint: make sure the same units of measurement are used.)

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.