Evaluate the Flux with Divergence Theorem

PsychonautQQ
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Homework Statement


Evaluate the flux where F = <(e^z^2,2y+sin(x^2z),4z+(x^2+9y^2)^(1/2)> in the boundary of the region x^2 + y^2 < z < 8-x^2-y^2


Homework Equations





The Attempt at a Solution


So using the divergence Theorem,

∇ dot F = 6

∫∫∫6r dzdrdθ

where z is bounded between r^2 and 8-r^2
and r is bounded between 0 and 8^(1/2)
and θ is bounded between 0 and 2∏

is this correct?
I'm mainly worried about my limits of integration for r and z are incorrect, can anyone verify?
 
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Okay so yeah what I wrote is probably wrong, can anyone help me and my friends along?
 
BRAIN BLAST!
I just realized that the r bound should go from 0 to 2? right??
 
PsychonautQQ said:
BRAIN BLAST!
I just realized that the r bound should go from 0 to 2? right??
The enclosed volume is the volume between two paraboloids. I think what you have is correct.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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