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]
An adjustable rectango,e2+a; q s6 xhjt7igpular frame has length 12 cm and width 5 cm, and is bgqoqv;kp 6h t(7ll,3juilt in such a wa6( jq,otv7;3 p gllqkhy that one of the longer sides can be moved without bursting the soap film contained in the frame. Soapy water has surface tension 0.026 N/m. How much work is required to move the adjustable long side so that the frame is 12 cm square?
A. $2.2 \times 10^{-4} \; J$
B. $4.4 \times 10^{-4} \; J$
C. $2.2 \; J$
D. $4.4 \; J$
参考答案: B
本题详细解析:
暂无
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