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 grea2 6,24lp( cdrhaxbi b9yfj1e.d:f mrj t migration of people toward the Earth’s equator, how would xjredhy m2 .1lcdi9a( 62, r :bfbf4pj3-no 08 j4z,koln xgnsthis affect the length0jok-8 g, xnn4zn 3sol 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