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範例:連通管原理與表面張力[85日大]

一細玻璃管其內半徑為r，管內封入某氣體後，倒置於某液體中(如圖所示)。今測得管中液面較管外高h，且液面與管壁之接觸角為α。若液體的密度為ρ，表面張力為T，管外大氣壓力為Po，重力加速度為g，則管內氣體壓力為何?[85日大]

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Posted in 歷屆物理考題, 液體的界面現象.

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By admin – 2009 年 06 月 09 日

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