Physics Unit10: Fluids Related Topics (id: fb335e8fd)

本题目来源于试卷: Physics Unit10: Fluids Related Topics，类别为 国际高中通用物理

[单选题]
Liquid flows through a 4.0 cm n k4 3hueq/s:pdiameter pipe at 1.0 m/s. Theb 3o+zr*g8 szzm 0w8c/;h lvgnre is a 2.0 cm diameter restriction in the line. What is the velocityz n ggzzlhw3 cv88*/bmr0s o+; in this restriction?

A. 0.25 m/s
B. 0.50 m/s
C. 2.0 m/s
D. 4.0 m/s


参考答案:  D


本题详细解析: 暂无

微信扫一扫，分享更方便