本题目来源于试卷: Rotational Motion，类别为 IB物理学
[问答题]
If there were a great migration of pzycyo7h 4kf cuk4(:1yevqs0wqcry5x5zi,by7455 *rj 6 ya e tpople toward the Earth’s equator, how would this affect the length of t0yris 5py7c4,jb5wv tq*a x5e6yrq5 zhe day?
参考答案:
If
a large number of people went to the equator, the rotational inertia of the
Earth would increase, since the people would be further from the axis of
rotation. Angular momentum would be
conserved in such an interaction, and so since the rotational inertia
increased, the angular velocity would decrease – the Earth would “slow down” a
small amount. The length of a day would
therefore increase.
本题详细解析:
暂无
| 
