[填空题]
Suppose a star the size of our Sun, but wittiu/s 1))qs1(tag vf e7cxy f7h mass 8.0 times as great, xs d0y (k cv4q gne;9h3ut2ko0were rotating at a speed of 1.0 revolution every 12 days. If it were to undergo 0kv;h0n2o(93dq g 4ey sxk tucgravitational 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
