[填空题]
Suppose a star the size of our 2 s7v.a.it et (9q.kjlgxnqo5Sun, but with mass 8.0 times as great, were rot:+u d .cnz6ev)*ppijtating 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 tz+u pcepd6i *v j:n).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
