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範例:浮力(沈體)與滑輪

如右圖,不計繩重,滑輪重及摩擦,物體浸入水中,拉力F為200克重系統平衡，若將水槽移走，使物體懸於空氣中，拉力F增為250克重。才可使滑輪不動，則該物體密度為多少克/厘米3。[87北聯]


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Posted in 液體的浮力.

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By admin – 2009 年 06 月 06 日

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