[填空题]
Suppose a star the size of our Sun, but with mass 8.0 timt.r-;hl u/g iis ifndo*s;1x *es v:;yo tv80sxk7*dcu kas great, were rotating at a speed of 1.0 revolution every 12 daysckkdxust ;* o8 7v:v0y. 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
