問題詳情
一、下圖(a)所示為浮子流量計（rotameter）的一段面，而下圖(b)所示為控制體（controlvolume）。圖中z表示高度，u 表示流速，p 表示壓力，a, A表示面積， g 表示重力加速度，M 表示浮子的質量。令 p 和 p f 分別表示流體和浮子的密度，根據位置 1和 2（圖中符號下標所示）建立： 
⑴ 連續方程式（質量均衡）。（5 分）
⑴ 連續方程式（質量均衡）。（5 分）
參考答案
答案：B
難度：非常簡單0.977945
統計：A(11),B(1951),C(32),D(1),E(0)
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