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Rotational Dynamics (id: ae2f4d68f)

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admin 发表于 2024-8-14 20:56:08 | 显示全部楼层 |阅读模式
本题目来源于试卷: Rotational Dynamics,类别为 美国物理杯赛(Physics Bowl)

[单选题]
15.35: Two uniform disks, X and Y, have equal masses M but differvpbm;oe - x,soqz/nyg.- 21irent radii suci *-kufnjqu .1h thju-u fqk.*1inat $r_x< r_y$. Both disks initially are at rest. A force F is applied tangent to each disk at its right edge for the same amount of time. As a result, each disk rotates counterclockwise in the plane of the page about a fixed frictionless axis through its center. Which one of the following choices correctly compares the magnitudes of angular momentum L about the center axis and total kinetic energy K of disk X and disk Y?


A.
B.
C.
D.
E.


参考答案:  E


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