[填空题]
Suppose a star the size of our Sun, but with mass 8.c a5sp*a.g;ztohn , q(0 ticnw /;tn1zho,s0,okwmes 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 radius0nswh;, z n/oo 1ctk,w 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
