[填空题]
Suppose a star the size of our Sun, but wy0x9b0abs:l:ua)amc 8l d 7qay abl-7 ith masn js p;q.yvgr+,-i1rg s 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 radr p+- iysjgn,vg1 r.q;ius 11 km, losing three-quarters of its mass in 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. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
