[填空题]
Suppose a star the size 9y -5epqig f cx(j8uba +(ktv.of our Sun, but with massac,2 -j7emt8 ucg;ftpq3d( jf 8.0 times as great, were rotating at a speed of 1.0 revolution every 12 days. If it were tot d fj8- qe2 7fc;uct(gjpma3, undergo gravitational collapse to a neutron star of radius 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
