本题目来源于试卷: Fluid Mechanics，类别为 美国物理杯赛(Physics Bowl)
[单选题]
13.25: An ideal flui -iors0qpuu 72g8mgg30blo 1wo ra :2s d k5qs xciq, p6. kz.5 r4tu-xkmcompletely fills a small horizontal tube that has a narrowing x zsrc6 x4-q.pq5m5t k,kkiu. cross-sectional area as seen in the figure. Which one of the following choices best describes what has happened to the fluid’s speed and its associated pressure in the narrower region as compared to the wider region?
A. The fluid speed increased and the fluid pressure decreased.
B. The fluid speed increased and the fluid pressure increased.
C. The fluid speed increased and the fluid pressure remained the same.
D. The fluid speed decreased and the fluid pressure increases.
E. The fluid speed decreased and the fluid pressure decreases.
参考答案: A
本题详细解析:
暂无
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