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 the same diameter, rj9ia;a cc 9 so 66uqxia)yz .d)62jkj ejid99but pipe B is twice azmso8 0ewr0. (nh-.jqmj kxmvn8c 00 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 i 0qam-jcknv8n0e.m .zhs wr80ox(m j0n pipe B is 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:
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