[填空题]
Suppose a star the size of our Sun,4eo-tcd xg3c t0y*s n/ but we +hyefx*fv i895r eg6ith mass 8.0 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 thee9+ ihrve8yf5x *gf6e 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
