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Homework Help: I don't really understand Coulombs Law

  1. May 17, 2009 #1
    1. How much Coulombs force is exerted on a proton by an electron if they are 15mm away from each other? Is the force attractive or repulsive?

    2. http://www.glenbrook.k12.il.us/gbssci/phys/Class/estatics/u8l3b1.gif [Broken] where k=9* 10^9 N*m^2/c^2

    3. I know that the force is attractive,http://www.glenbrook.k12.il.us/gbssci/phys/Class/estatics/u8l3b2.gif [Broken] but I don't know where to find some elements in Coulombs law.
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. May 17, 2009 #2


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