本题目来源于试卷: Angular Momentum,类别为 美国物理杯赛(Physics Bowl)
[单选题]
05.49: Two solid disks are made of mlewk5nvw )99v7fw 2u rc,be blzzs8 uba9qv,+5 4f ,fthe same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, through its center. Given that9+s45 eb,ubbv8zzrc lfa f,,q the disks have equal kinetic energy, what is the ratio of the angular momentum of the disks $\frac{L_{2R}}{L_R}$
A. 16
B. 8
C. 4
D. 2
E. 1
参考答案: C
本题详细解析:
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