爱因斯坦质能关系01 mc2就是物理系统除外场引起的势能之外的全部能量.除外场引起的势能之外, 系统的能量由系统的质心动能和内禀
回答: 毛明义 电磁波球面会随着时间的流逝,以光速增大,几何球面不会随着时间的流逝增大 狭义相对论的相对性原理:一切彼此相对作匀速直线运
由 marketreflections
于 2011-05-14 07:06:13
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