[填空题]
Suppose our Sun eventually collapses into a white dwarfkl jx g)hl,v;n*9 ifr1, losing about half itj:fcb j0yse-0.)c pnis mass in the process, and winding up with a radius 1.0% of its existing radius. Assuming the lost mass carries away no angular )p0i.yscjf-:nc0eb j 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
