Q1. After the Sun exhausts its nuclear fuel, its ultimate fate might be to collapse to a white dwarf state. In this state, it would have about the same mass as it has now, but its radius would be equal to the radius of the Earth.

Compute the gravitational potential energy associated with a 4.51 kg object at the surface of the white dwarf.

Q2. A block rest on table top undergoing simple harmonic motion (a (tabletop) = -2 pi/T)^2 x, of amplitude A and period T with vertical oscillations.

Examine motion in acceleration frame of the tabletop at highest point table top motion. Give a detailed Forced Diagram.