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 hav mk96kznwtu4+gg97/a t(x4 0rfutlj he the same diameter, b rlfy;c ycirn3u;.2v2ut 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 is Q, what is the flow rate c.rcvr;ln2 23 fy;iu yin pipe A?
A. $Q$
B. $2 \; Q$
C. $4 \; Q$
D. $8 \; Q$
参考答案: B
本题详细解析:
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