Keying Guan Department of Mathematics, School of Science, Beijing Jiaotong University Email: keying.guan@gmail.com Just as Einstein demonstrated that mass equivalent to energy, force is equivalent to power . This is implicit in modern analytical mechanics and revealed in the autho ...
管克英 北京交通大学理学院，数学系 Email：keying.guan@gmail.com Abstract: This paper points out that the combination of the law of conservation of energy and the law of conservation of momentum implies an important law that is often ign ...
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