[填空题]
Suppose a star the size of our Sun,5 xqo zpqpz*f4-mq)6jyyxagb 8qvx.)qpgeu28di(g / . eo*8 obut 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 1.e y 8pdqb8xg/a*.v) qio8( ouy2eg xg1 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
