[填空题]
Suppose our Sun eventually collapses into a whh7(qf8hgou cju)n /*q: (fbf bite dwarf, losing about half *rytuz ,7 z2a 4ge+yibits mass in the process, and wi4i2* ar ,+ztbzyue y7gnding up with 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?$KE_{f}$= $KE_{i}$
Post time 2025-2-18 20:00:22
