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]
Water flows at 12 m/s in a horizontal pipe wiy ej/kf)(dm0 mth a 2,e.,)whoj)a xs jgphpressure of $3.0 \times 10^4 \; N/m^2$. If the pipe widens to twice its original radius, what is the pressure in the wider section?
A. $3.0 \times 10^{4} \; N/m^{2}$
B. $4.9 \times 10^{4} \; N/m^{2}$
C. $7.4 \times 10^{4} \; N/m^{2}$
D. $9.8 \times 10^{4} \; N/m^{2}$
参考答案: D
本题详细解析:
暂无
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