[填空题]
Suppose a star the size of our Sun, but 5f w0cubfj b,4:xq:f p 2jwsq4with mass 8.0 times as great, wef(v fs-5vk v9zre 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? fk5z-vvvs9 (f 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
