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: Finding distance with net electrostatic force

  1. Jan 23, 2012 #1
    1. The problem statement, all variables and given/known data

    The point charges in the figure have the following values: q1 = +3.7 µC, q2 = +6.3 µC, q3 = -0.89 µC. Suppose that the magnitude of the net electrostatic force exerted on the point charge q2 is 0.81 N. Find the distance d in centimeters.

    Diagram: 18-9.gif

    2. Relevant equations

    F=(K*q1*q2) / d^2

    3. The attempt at a solution
    this is what i ended up doing
    http://a5.sphotos.ak.fbcdn.net/hphotos-ak-ash4/s720x720/398618_10151211539755525_523360524_22905004_624954368_n.jpg [Broken]

    i'm pretty sure i did the math right, i got 93.86 cm as my final answer. does that look right?
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted