ch42-p021 - pairs of protons is Z Z – 1/2 where Z is the...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
21. (a) Since the nuclear force has a short range, any nucleon interacts only with its nearest neighbors, not with more distant nucleons in the nucleus. Let N be the number of neighbors that interact with any nucleon. It is independent of the number A of nucleons in the nucleus. The number of interactions in a nucleus is approximately N A , so the energy associated with the strong nuclear force is proportional to N A and, therefore, proportional to A itself. (b) Each proton in a nucleus interacts electrically with every other proton. The number of
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: pairs of protons is Z ( Z – 1)/2, where Z is the number of protons. The Coulomb energy is, therefore, proportional to Z ( Z – 1). (c) As A increases, Z increases at a slightly slower rate but Z 2 increases at a faster rate than A and the energy associated with Coulomb interactions increases faster than the energy associated with strong nuclear interactions....
View Full Document

This note was uploaded on 05/19/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

Ask a homework question - tutors are online