[填空题]
Suppose a star the size of our Sun, but 6r dalqt9p)w;g oh; 0bwith mass 8.0 times as grea jov,s te6is-:t, 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 thetve 6 sio:,sj- lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
