本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified
[问答题]
If there were a great migration of people toi:r*)p sbw4c8 lrz,m50 xf7k0cyrrz oward the Earth’s equator, how s 2(b ky kt4cysce3ird)wpr j n3pb0,k/0er**would this affect the lds4r ncbierke*p2k3 rk(03 s)t* 0 yyw,cjbp/ength of the 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:
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Post time 2025-2-18 20:00:22