The mass of a thin spherical shell of radius r1 and thickness dr is:
(3-r1)4*pi*r1^2 dr
So I think you just need to integrate this from 0 to 3 wrt r.
Title | # Comments | Views | Activity |
---|---|---|---|
derivative | 19 | 23 | |
Decrease number proportionately | 20 | 85 | |
Graph | 5 | 61 | |
What is the Difference between Percentile and T-Score, where to use which one ? | 5 | 73 |
Join the community of 500,000 technology professionals and ask your questions.
Connect with top rated Experts
17 Experts available now in Live!