1. Study F09 HW #2 and solutions

2. Study F09 HW #3 and solutions

3. FW 3.17

4. A central force is described by the potential U(r)=U_0 ln(1+(r/a)^2). Sketch the effective potential, identify all fixed points of the radial motion,
and find the frequency of radial oscillations for small deviations about uniform circular motion. Does periapsis advance or recede with each cycle?

5. FW 4.5

6. FW 4.10