本题目来源于试卷: Fluid Mechanics，类别为 美国物理杯赛(Physics Bowl)
[单选题]
13.50: AU-tube is filled w 3p v:yx n ck*ozd(3c p)bd39b+x1mfwrit v0ha/ m7r;vw 4eqix z+h mercury (density $13.6g/cm^{3}$) as shown in the left-most figure. Water of mass 800 grams is added to the left-hand side of the tube. When equilibrium is re-established, the tube appears as shown in the right-most figure. The cross-sectional area of the left tube is$ 6.5 cm^{2}$ while the right tube has cross-sectional area $15.0 cm^{2}$. Which one of the following choices best represents the height above the original equilibrium that the mercury rises in the right tube? The drawings are not to scale.
A. 1.96cm
B. 2.74cm
C. 3.92cm
D. 4.92cm
E. 9.05cm
参考答案: B
本题详细解析:
暂无
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