送交者: HunHunSheng 于 2007-09-13, 11:21:12:

• 这是 m 的定义. (无内容) - 008 (0 bytes) 2007-09-13, 13:41:15 (170224)
  • Not true. Mass is defined by inertia or gravitation - 赤城 (40 bytes) 2007-09-13, 14:01:42 (170229)
    • You think so only because you don't know what is m (无内容) - 008 (0 bytes) 2007-09-13, 14:41:58 (170243)
• E=mc^2/sqrt[1-(v/c)^2)] - 赤城 (110 bytes) 2007-09-13, 11:38:01 (170176)
• 我上中学的时候就问老师为什么不是E=1/2 mc2 - 老中乙号 (35 bytes) 2007-09-13, 11:33:34 (170172)
  • 更正：动能的公式是E=1/2mv2 (无内容) - 老中乙号 (0 bytes) 2007-09-13, 11:34:24 (170173)

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