U (MeV) 20 Potential energy of two nucleons Electrostatic potential energy of two protons 10 0 2 -10 -20 -30- -40- -50- r (fm) 4 The strong force has vanished by r3 fm. The maximum force occurs at 1.5 fm, where the slope is maximum. Point of stable equilibrium

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Estimate the strength of the strong force between 
the neutrons separated by a distance of 1.5fm (point 
of maximum force). Is the force attractive or 
repulsive at this distance?

U (MeV)
20
Potential energy of two nucleons
Electrostatic potential
energy of two protons
10
0
2
-10
-20
-30-
-40-
-50-
r (fm)
4
The strong force has
vanished by r3 fm.
The maximum force
occurs at
1.5 fm,
where the slope is
maximum.
Point of stable equilibrium
Transcribed Image Text:U (MeV) 20 Potential energy of two nucleons Electrostatic potential energy of two protons 10 0 2 -10 -20 -30- -40- -50- r (fm) 4 The strong force has vanished by r3 fm. The maximum force occurs at 1.5 fm, where the slope is maximum. Point of stable equilibrium
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