GKFix MCQ Question

What is the potential energy difference between two points at r1 and r2 (r2 > r1)?

• A. ΔW = mg(h2 – h1)
• B. ΔW = GMEm (1/r2 – 1/r1)
• C. ΔW = –GMEm (1/r2 – 1/r1)
• D. ΔW = 0