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: 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