There is nothing wrong with tht
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送交者: 赤城 于 2007-09-13, 14:57:55:
回答: E=mc2的系数问题俺还是没明白。 由 Amsel 于 2007-09-13, 14:39:02:
Imaging you use pounds and inches for mass and length units. Also, in electrodynamics you have the 1/4pi epsilon factor in the SI unit.
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