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作者 BaBi 在 PTT [ TransPhys ] 看板的留言(推文), 共60則
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5F→:Thomas不是微積分嗎XD06/26 15:11
3F→:位能是相對的, 正負是看你選的零位面而定.05/13 20:40
5F→:為了方便數學推導, 彈簧通常會取原長為零位面, 電位能取無窮05/14 13:02
6F→:重力取無窮(當重力場非均勻時, 通常是計算行星運動才考慮)05/14 13:03
7F→:但上述都只是通常, 有時候方便計算會選取不同的地方..05/14 13:04
8F→:比較需要注意的是如果計算到一般均勻重力場, 則以方便計算優05/14 13:04
9F→:先考慮. 再者, 零位面在同一計算式中不得任意更動.05/14 13:05