[填空题]
Suppose a star the size of our Sun, but wit z/ jj9b0y8azgh mass 8.0 tim3of/g+x /j49hsza 3 q ba1az/+id xykyes as great, were rotating at a speed of 1.0 revolution every 12 3/okd+a ya/z/91 sq a4zgjb+ hfyxxi 3days. 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
