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: Stuck on a different problem.

  1. Feb 17, 2004 #1
    https://hw.utexas.edu/tmp/Muddam1/1077041275Xuj.pdf [Broken]

    I'm stuck on fourteen. Without the charge's coordinates how can I calculate the electric force on the charge?
    Last edited by a moderator: May 1, 2017
  2. jcsd
  3. Feb 17, 2004 #2

    Doc Al

    User Avatar

    Staff: Mentor

    The charge is at the origin, coordinates 0,0. (Hint: Problem #14 uses the results of prob #12.)
  4. Feb 17, 2004 #3

    Didn't take notice of the word "origin". Anyway, you don't need to the answers from #12 because F= k*q1*q2/r^2 and you find force of the charges on the origin charge and take the magnitude of it.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook