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哦,對。我想說的是,他假設兩車‘粘’在一起的時候 沒有能量損失,在實際生活中不是這樣。
-徒勞-
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02/09/2014 postreply
10:56:18
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樓上諸位,複習物理
-biglow-
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02/09/2014 postreply
12:07:36
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不好意思,回去複習物理。。。
-徒勞-
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02/09/2014 postreply
12:23:07
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Yes. 動量總是守恒
-smallCrab-
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02/10/2014 postreply
17:36:46
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