[填空题]
Suppose a star the size of ouk .fvl.q/s 2cjq4 l+fjr Sun moe:-, jwayd 0pi9zx o/4mzb/, 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 in the process, what would its rotation speed be? Assume that the star is a uniform sphere at ,mp xmzbajz-4oo:0/dw9/ eyi all times, and that the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
