(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

W is the solid bounded above by [tex]\rho[/tex]=3 and below by[tex]\phi[/tex]=[tex]\pi[/tex]/3, calculate the mass W if the density at each point is directly proportional to the square of its distance above the xy plane.

3. The attempt at a solution

I am having a difficult time starting out this problem, I am assuming I need to use spherical coordinates considering the problem is given in terms of rho and phi, however it says bounded above by rho=3 and below by phi =pi/3, I thought phi determined the angle from the z axis to rho??

Any thoughts direction would be appreciated

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Tough Integral problem

**Physics Forums | Science Articles, Homework Help, Discussion**