Suppose a star the size of our Sun, but of mass 8.0times as great, were rotating at a speed of 1.0 revolution every11 days. If it were to undergogravitational collapse to a neutron star of radius 13 km, losing 3/4 of its mass in process, what would its rotation speed be? Assume the star is a uniform sphere atall times.
(a) Assume that the thrown-off mass carries off noangular momentum,
rev/s
(b) Assume that the thrown-off mass carries off its proportionalshare (3/4) of the initial angular momentum.
rev/s