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

Nuclear physics question

  1. Apr 19, 2005 #1
    The question is in the attachment..

    My thoughts were that between 2 protons, there's obviously going to be higher electrostatic repulsion, so a higher attractive strong force is needed (to keep the protons together), than with 2 nucleons. But the highest strong force is when separation is low, but that's also when the electrostatic repuslion would be great?

    Attached Files:

  2. jcsd
  3. Apr 19, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    The question is asking about the equilibrium separation. Suppose you had two neutrons in equlibrium (separation [tex] \displaystyle{x_0}[/tex]), and you could change them into protons. What would happen?

    The strong force is called the strong force because it really is strong- way stronger than the electrostatic force. If I am reading the graph correctly, it represents force in units of kiloNewtons as a function of separation. What would the force between two protons be if separted by [tex] x_0[/tex]? That is a number you can work out.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook