[填空题]
Suppose our Sun eventually3vn uh)(:qn;gmb(foji z 9f/c collapses into a white dwarf, 85)gpana uu-kb5*b li losing about half its mass in the process, and winding up with a radius 1g8bi) u5apl-5a kb*n u.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
