(2)当r=r时代入E(可得势能极小值 Ep(rd=Eo()2( 0 (3)当Ep()=0 Ep(r (3)势能曲线 0112 )-2(r)=0 016 2 0 ro2 0 目录结束E ( ) 2 r 12 0 r0 (r) EP = ( ) r r 6 0 = E0 ( ) 2 r r 12 0 ( ) r r 6 0 = 0 ( ) r r 6 0 = 2 1 r =r0 2 6 r =r0 (r) (2) 当 时代入EP 可得势能极小值 (r) (3)当 EP = 0 (r) EP r r0 o E0 (3)势能曲线 目录 结束