[填空题]
Suppose a star the size ofotme9r:8fr8h25wyq+phip0 / wo f/ ai our Sun, but with mass 4co, q3px7wdts t 2-ls8.0 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 dc4 stows-qt7p,23xl the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
