Problem 9.6

Question 1

The surface of the Ocean is an equipotential. Neglect any effects of the Sun. Find the height of the ocean h(theta)

Answer 1

Question 2

What Equation do we use to stick h in?

Answer 2

Utid(Q) - Utid(T) = Ueg(T) - Ueg(Q) = mgh

Question 3

First Step
Use :aw of Cosines to find d-1. Do binomial expansion for r<

Answer 3

Question 4

Do binomial expansion

Answer 4

Question 5

The expansion cancels one term in 1 (the second one, with x).

Answer 5

Question 6

Answer 6

Use g = GMEarth/REarthREarth