[填空题]
Suppose a star the size of our Sun, but with mass 8.0 tim )nv-w9xlr 7mles as great, were rotars;ijklbp-oba(:n2g2 h 9xy * ting 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 th o ljbpb;*:h9xy 2aks2(n-gr iat the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
