[填空题]
Suppose our Sun eventually collapses into a white dw/n2g ;-ju7 gbf wrou7xarf, losing abw0eh6g86 r rprout half its mass in the process, and winding up with a radi w 8rre6gh0r6pus 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?$KE_{f}$= $KE_{i}$