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 migrati1qlhw/9.v saqon of people toward the Earth’s equator, how w51)m hm1yg olzofsef6 220 5vy8siulgould this affecthl1v 8ig26sef)fmy lu 5gs2o1 o0yz5m the length 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