本题目来源于试卷: Angular Momentum，类别为 美国物理杯赛(Physics Bowl)
[单选题]
03.41: Two uniform sp.4m)zd al:lus heres ,qf:b1qbcls4 3 qbr,zof mass M have radii R and 2R. Each sphere is rotating about a fixed axis through a3rqfbszbb, q qc 1,4:l diameter. The rotational kinetic energies of the spheres are identical. What is the ratio
of the magnitude of the angular momenta of these spheres? That is, $\frac{L_{2R}}{L_R}$=?
A. 4
B. $2\sqrt{2}$
C. 2
D. $\sqrt{2}$
E. 1
参考答案: C
本题详细解析:
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