[填空题]
Suppose a star the size of our Sun, but with mass 8.0 tgjkv(v/4 tl( c8c 6mcaimeige mj y4 -qivcccx6.t/k;f1/ s as great, were rotating at a speed of 1.0 revolution every 12 days. If it were to undergo gravitational c 16yvijc;. 4q t m/kcfgi/ex-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
