[填空题]
Suppose our Sun eventually collapse m7bht+rh1psvu .,nqpv 5(8wes into a white dwarf, losing about half itnmn8(d 7tt cecu r;2q-s mass in the process, and winding 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 n-c; 2u7n cerqm(tdt8nearest 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
