[填空题]
Suppose a star the size of our Sun, but with mass 8.0 times.7fd np5uuev, as gea5nc/px* q: gq+d2pe(t xc q)reat, were rotating at a speed of 1.0 re2qt(c5xe*+e gp nqc)q/ dx:apvolution 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
