The diagram below shows a neutral hollow metal sphere with outer radius R and an inner radius 0.5R. At the center of the cavity there is a charge Q. What is the flux through a spherical surface (shown with a dashed line) with radius 1.5R centered on the metal sphere? A) O B) Q/co C) Q1360 D) Q/460 - - E) Q/860 O - - +You have two solenoids, A and B. A has twice the length, twice the number of turns, and twice the diameter of B. Both carry a current I. How does the energy stored by solenoid A compare the energy stored by solenoid B? A) UA = 0.5 UB B) UA = UB C) UA = 2UB D) UA = 4UB E) UA = 8UB