[填空题]
Suppose a star the sizn 9p5y4 );fih0ihxc ph;eondo51 )lkie)xdu s k(m/1 h)as,n sr-cxk;y of our Sun, but with mass 8.0 times 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 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 anguux(s kc a,)d rs/x)1-sy;kmhnlar momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
