gc textbook chapter 8 Rotational Motion (id: 98eaaa4fb)

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 通用国际物理

[填空题]
Suppose a star the sisa+ uiv8r s+ai( *vze22igdp;vkfe lnv+,4o 6 ze of our Sun, but with mass 8.0 times as great, were rotating at a speed of 1.0 revolution every 12 days. If it were to undergo gravitational collapse to a neutron star of radius 11 km, losing three-quarters of its mass igd4fe vnv p ,l2;6o+kin the process, what would its rotation speed be? Assume that the star is a uniform sphere at all times, and that the lost mass carries off no angular momentum.    $\times {10}^9$ $rev/day$

参考答案: 1.334±2%


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