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Homework Help: Question regarding gravitational potential

  1. Jan 9, 2005 #1
    I have my question and solution in the attachment that followed.

    Attached Files:

  2. jcsd
  3. Jan 9, 2005 #2
    do you know calculus? if yes, review the way you did dV/dr, if dr = (400000-39000) or (410000-400000), the answer will be closer, your second part is right....
  4. Jan 9, 2005 #3
    the solution might expect you use the data table, so the number have some error....
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