- #1
jamesbob
- 63
- 0
Question: A spehrical planet of Radius R has a density p which depends on the distance r from its centre according to the formula
where [tex] p_0 [/tex] is a constant. By dividing the planet up into spherical shells of a small thickness dr, find the mass of the planet.
Ok so I am pretty confused on what I am to do here. Do i differentiate with respect to r?
[tex]p = \frac{p_0}{1 + (r/R)^2} [/tex]
where [tex] p_0 [/tex] is a constant. By dividing the planet up into spherical shells of a small thickness dr, find the mass of the planet.
Ok so I am pretty confused on what I am to do here. Do i differentiate with respect to r?