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RavenMochi

Well-Known Member
In my previous life my college major was medical lab technology. I was also a lab technicial for a peanut processing plant doing qualitative analysis on freshly dug peanuts. I pulled a 4.0 in chemistry and wondered why I didn't go on with that. ...and I toyed with being an amateur pharmacologist, of sorts. Lysergic acid Dyethylemide anyone?
†LOL† don't play with my emotions, potpimp. I've been looking for lucy for far to long now... :p
 

potpimp

Sector 5 Moderator
Did you know they have found polar bears swimming in the sea over 200 miles from the nearest land or ice? Black skin, translucent fur, can float like a cork, swim like a fish, and smell a dead seal for 25 miles. They are the most perfect killing machine on earth.
 

RavenMochi

Well-Known Member
Did you know they have found polar bears swimming in the sea over 200 miles from the nearest land or ice? Black skin, translucent fur, can float like a cork, swim like a fish, and smell a dead seal for 25 miles. They are the most perfect killing machine on earth.
:shock: Now it all makes sense. Cannabineer's a polar bear spy!!! Their fixing to knock us down a peg on the ol' food chain! *gasps!!* Just remember, when Polar bears become our new overlords (figure it'll either be them, cats, penguins, dolphins, or the machines) to put in a good word for me ;)
 

potpimp

Sector 5 Moderator
:shock: Now it all makes sense. Cannabineer's a polar bear spy!!! Their fixing to knock us down a peg on the ol' food chain! *gasps!!* Just remember, when Polar bears become our new overlords (figure it'll either be them, cats, penguins, dolphins, or the machines) to put in a good word for me ;)
Here in Alaska, humans are WAY down the food chain!
 

cannabineer

Ursus marijanus
Never fear! Seals are tastier than people, and what you guys eat - !! I mean, I love junk food, but as a staple? cn
 

RavenMochi

Well-Known Member
Never fear! Seals are tastier than people, and what you guys eat - !! I mean, I love junk food, but as a staple? cn
As a side note, ravens aren't worth eating, not enough meat. Anyways, if you come this far south for some junk food, we got some nice fat folk with some flavor to 'em ;)
 

cannabineer

Ursus marijanus
That sounds tempting, Raven, but I'm trying to mind my intake of Trans Fats.


potpimp, those Tundra comics, are, awesome!!!!! cn
 

RyanTheRhino

Well-Known Member
Can someone help me with my homework?

welcome to the double integral
that's just a proof... what is its application what are your variables and constants.


[video=youtube;UfLLmtdfO0M]http://www.youtube.com/watch?v=UfLLmtdfO0M&feature=player_detailpage[/video]
 

RyanTheRhino

Well-Known Member
Also two things:

Firstly this may be a foolish question as said due to long absence from such maths i may simply be forgetting basic things however how can one integrate with respect to theta when it isn't a variable in the actual function?

Secondly why at the second step don't we just pull r out the front as well? Also after that I'm a bit skeptical as to the working for a number of reasons though I'd like a bit more input before making any further accusations.

However one more Q: Wouldn't we need to know the relative sizes of a and r in order to know how to integrate the inverse of sqrt(a sq'd minus r sq'd)? And I don't mean due to the fact we can end up with complex solutions of course we're probably talking real solutions though if I remember correctly depending on the relative sizes couldn't we get either a natural log or arc tan etc?

Further information would be appreciated.

And thank you for the welcome.
1. In the end you get (constant)* (Integral of dy/dx) = Constant * (X - 0) = constant * X = constant * upper limit = (A^2)2Pi/5
the derivative of x = dy/dx so the Integral of dy/dx = x


2. you cant pull the r out because it is a variable.. if you notice the Integral in respect to "dr" therefore r is a variable.
 

researchkitty

Well-Known Member
<<<is mathematically retarded
Thankfully you dont need much math to understand a lot of concepts.......... You do need to be well versed in math if you plan to pursue a career in physics, though! "Common folk" think that scientists get their predictions from random thought, but its generally the math and other observational evidence that brings most predictions to the scientific forefront.
 
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