本题目来源于试卷: Basic Concepts，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.45: A long thin rod of ma4ag;j6irjmn zw l 50*8u e1ietss M and length L is pivoted7.vwt3 kp sl kz8zjr35 at one end so that it swings as a pendulum. The rod is set into simple harmonic oscillation and has a period of motion T. A second thin rod with mass 2M and length 2L also is pivoted at one end to swing as a pendulum. When this second rop3ktw3lz .v7 8zkrj5 sd is set into simple harmonic oscillation, what is its period?
A. $2 T$
B. $\sqrt{2}T$
C. $T$
D. $\frac{1}{\sqrt{2}}T$
E. $\frac{2}{1}T$
参考答案: B
本题详细解析:
暂无
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