Ch 08: Conservation of EnergyWorksheetSee all chapters
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Ch 01: Units & Vectors
Ch 02: 1D Motion (Kinematics)
Ch 03: 2D Motion (Projectile Motion)
Ch 04: Intro to Forces (Dynamics)
Ch 05: Friction, Inclines, Systems
Ch 06: Centripetal Forces & Gravitation
Ch 07: Work & Energy
Ch 08: Conservation of Energy
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Solution: The potential energy between two neutral atoms is called the Lennard-Jones potential, and is given by the equation U(x) = A/r12 - B/r6 where A and B are positive constants.  a) What is the force du

Problem

The potential energy between two neutral atoms is called the Lennard-Jones potential, and is given by the equation

U(x) = A/r12 - B/r6

where A and B are positive constants. 

a) What is the force due to this potential energy?

b) For what range of r is the force attractive, and for what range of r is the force repulsive? Note that if the force is positive, it is repulsive, and if the force is negative, it is attractive.