[填空题]
Suppose a star the size of our Sun, but with mass 8(jlc+ bx( )( jexdw/gd cd/;fz.0 times as great, wer4(9u ,3(zw 8bufa;o/bd7aj9 clfif;i okofl de rotat u;i4adl o /,zfa8o (f7jbwb9kf3; o9u(dclifing 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 all times, and that the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
