Can someone help me with this question? "A disk-shaped cloud of hydrogen with mass 1030 kg and radius 108 km rotates about an axis through the center of the disk as shown with a period of 1000 days. After a long time, the disk contracts into a spherical star of radius 106 km. What is the new period of rotation?"
Sure: 42
Oh... And that's a really really lightweight star you got there.
"We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary." — James D. Nicoll