So I plotted it out, and by inspection I concluded that the limits are:
0 \le r \le 3
0 \le z \le 3
0 \le \theta \le 2 \pi
However, I can't get past the integral:
\iiint_V r \sqrt{r^2 + z^2} \,dr\,dz\,d \theta
gives
\iint_V \frac{1}{3} (r^2 + z^2)^(3/2) \,dz\,d \theta...
Apologies but I still can't get it to work out. My limits are:
3 \le r \le z
3 \le z \le r
0 \le \theta \le 2 \pi
I'm fairly sure this is wrong, but can't figure out the correct ones
1. Homework Statement
The problem states: Use cylindrical coordinates to evaluate
\iiint_V \sqrt{x^2 +y^2 +z^2} \,dx\,dy\,dz
where V is the region bounded by the plane z = 3 and the cone z = \sqrt{x^2 + y^2}
2. Homework Equations
x = r cos( \theta )
y = r sin( \theta )...
Stuck on this problem also!!
I get to a stage where I get a massive cubic equation...I'm assuming I've gone wrong somewhere...
Any help? Or any online resources where the problem is worked through...?
I was thinking along the lines of this, but I noticed that on each circuit breaker it says 20A and there are around 30 of them. Does that make a difference?
Haha yeah it is the electrical panel, but its actually made of metal.
I still don't understand why that fuse blew instead of one of the circuit breakers switching?
Thanks dlgoff for the prompt reply. I'm not too sure about this. Would the circuit breakers not already be hot considering I had many devices on at the time?
Thanks
Ed
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Hi all,
I am trying to prompt the user to enter a mathematical function in matlab.
Any suggestions on how to do this?
I have looked at the inline functions but I am not sure how to code it.
Any help is greatly appreciated.
Ed
Hi Sarah,
Ok so I think you should revise the principle of conservation of charge.
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