[填空题]
Suppose a star the size of our Sun, but zfbs- xg47/hx with masc 6)lg jqqf6t29zrz:b wxn)y,s 8.0 times as great, were rotating at a speed of 1.0 revolution every 12 day6 j9q:xbq nrz,)lt f2c)wg y6zs. 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 all times, and that the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
