[填空题]
Suppose a star the size u d)tr )x6ei wnj(l+s.of our Sun, but wit7- ykbu 6zt.*0ktwqkwyx+q,n7 j6ejv h 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 thev7tyy q*bq 0te,k+j x.j-u 7k6n6zkww 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
