Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Binding Energy of a Satellite

  1. Jan 23, 2010 #1
    1. The problem statement, all variables and given/known data

    If an orbiting satellite has a total energy of -1.4 x 1012 J, then the binding energy is...

    b. 1.4 x 1012 J

    2. Relevant equations

    Eg = (-GMm)/r
    Binding energy = (GMm)/2r

    3. The attempt at a solution

    I was just wondering why the answer is 1.4 x 1012 J. Thanks
  2. jcsd
  3. Jan 23, 2010 #2


    User Avatar
    Homework Helper

    Isn't it because binding energy is the same thing as total energy, only positive?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook