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 rectangular frame has length 12 cm and fp+ kk -qu(la9b00i lfwidth 5bv o88w(2xt jp cm, and is built in such a way 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 lj8vo 8pbt2(xw ong 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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