Consider a mass, m, hanging vertically from a spring of spring constant k. The mass m is displaced a distance x from equilibrium and oscillates between a maximum position x and a minimum position X2. X1 Using the Conservation of Energy, describe why the change in gravitational potential energy (AU) between positions x1 and x2 should equal the change in elastic potential energy (AU) between positions X1 and X2. Hist Write out the mathematics for the total energy at the movi