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試卷名稱：94年 - 學士後西醫普通物理學94普通物理學#85579
年份：94年
科目：學士後西醫物理及化學
25.The potential energy of a diatomic molecule (a two-atom system like H2 or O2) is given by U=
where r is the separation of the two atoms of the molecule and A and B are positive constants. This potential energy is associated with the force that binds the two atoms together. The force that one atom exerts on the other is:
(A)
(B) 
(C)
(D)
(E)