[填空题]
Suppose our Sun eventually collapses into a zqa f.efsh7h,9(bbfe ,2 (c zcwhite dwarf, losinz;kep1cog (p (g about half its mass in the process, and winding up 1kz (;pop (ecgwith a radius 1.0% of its existing radius. Assuming the lost mass carries away no angular momentum, what would the Sun’s new rotation rate be?(round to the nearest integer)$\approx$ $rad/s$ (Take the Sun’s current period to be about 30 days.) What would be its final KE in terms of its initial KE of today?$KE_{f}$= $KE_{i}$
