[填空题]
Suppose a star the size of our Sun, but with mass 8.0 hifv5xtc9 q .a(w k:j lep8.i)yas6 +ytimes as g0q5+egy4a-tp4qbm l treat, were rotating at a speed of 1.0 revop4ge4ly -qtt5 qa+b0mlution 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 the lost mass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
