[填空题]
Suppose a star the size of our Sun, butyz)e w)kz1nfs7 zb,dh -ka+-p with mass 8.0 times as great, wereu/:cwetai 9)ib 7n7/a 1zria v 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 :a7 e9/ )7azba iiuv/irwntc1a 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
