1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Numericals On Electrostatics (including Coloumbs Law) ! !

  1. Dec 2, 2009 #1
    1. In hydrogen atom the distance between electron(e=1.6*10^-19 C)(Mass of electron=9.1*10^-31 kg) & proton(Mass Of proton=1.7*10^23 C) is 5.3*10^-11 m.

    2. Calculate the electrical and gravitational forces between 2 particles

    3. Can't do the problem... Please help!!
  2. jcsd
  3. Dec 2, 2009 #2
    Welcome to PF!

    What equations do you have for the gravitational force and the electric force?
  4. Dec 2, 2009 #3
    So you know that


    so then you are given both masses, the distance apart and the gravitational constant, so this should be a straight-forward "enter the variables" type problem.

    But what about the [itex]F_{electric}[/itex], what is the equation for that? (Hint: it has a similar form as the gravitational force)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook