[填空题]
Suppose our Sun eventually colla82i k,zf gc8xvpses into a whi2rdf2yi ha7 o)te dwarf, losing about half its mass in the process, and winding up with a radius 1.0% of its existing radius. Assuming the lostyfr doi)h227 a 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
