gc textbook chapter 8 Rotational Motion (id: 8aee9a1cc)

admin

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
Suppose our Sun event pvu cx 5kqg) f/r/ft 2grlk;ul5y1p95ually coj;8 9ax fzxoe2llapses into a white dwarf, losing about half its mass in the process, and winding up with a radius 1.0% of its exist ;xjxf9oze8a 2ing 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?$KE_{f}$=    $KE_{i}$

参考答案:
空格1: 0.05±2%  空格2: 20000±2% 


本题详细解析:

微信扫一扫，阅读更方便