16. What is the change in total entropy of the system? (A)(B)(C) nR (D) 0 (E) none of the above.

8. Consider a cube of density ρ and horizontal cross-sectional area L² with vertical height L. The cube is floating in a liquid with density ρ_L. At equilibrium a fraction L₀/L of the cube is immersed in the liquid. Now let's push down the cube a little bit and release it. What is the period of the subsequent oscillation? (A) (B)(C)(D)(E) none of the above.