dFd'UU(x)==kx<00dx2dxMolecular forceU(r) Awell10r
2 2 1 U(x) = kx 0 2 2 dx d U 0 dx dF Molecular force: U(r) r well r0 0
PendulumEp(1).m Point ofCinflection00Ep(2).00Symmetry broken
Symmetry broken 0 p 0 p Pendulum: (1). (2). Point of inflection . Pendulum: