[填空题]
Suppose a star the si xqug h 4n+7qwo6jl42pze o*t3zyxnb +)k 3yluxirq 2m 5v7f our Sun, but with 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 the star is a uniform sphere at all times, and that the lost m +2yv 3nxzq7kirbyu ) *tm3x5lass carries off no angular momentum. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
