本题目来源于试卷: Physics Unit10: Fluids Related Topics，类别为 通用国际物理
[单选题]
Two horizontal pipes have the9qt+ xj+6s dzd sf.hf *c5qk yxyq 91py9ame diameter, but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. If the flow rate in pipe B fhqyc9p91.yk *5fyq xis Q, what is the flow rate in pipe A?
A. $Q$
B. $2 \; Q$
C. $4 \; Q$
D. $8 \; Q$
参考答案: B
本题详细解析:
暂无
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