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Repeating Rifle
science forum Guru Wannabe

Joined: 25 Mar 2005
Posts: 205

Posted: Thu Jun 22, 2006 6:31 pm    Post subject: Re: TEMPERATURE!!

On 6/22/06 1:32 AM, in article rAsmg.5780\$E02.1753@newsb.telia.net, "NILS
BÖRJESSON" <borje@ludd.luth.se> wrote:

 Quote: [NOTE:T is the TEMPERATURE of PV=RT] %%%%%%% Given: T''(x)+ T'(x)2/x + sqrt(T(x)) = 0 values: T(0)=1 T'(0)=0 solve T(y)=0 to get the value of y at which T is 0 and calculate the limit: lim T'(x) x->y- DE. Off hand, I do not see what physical phenomenon is being described by

this equation. Is it some kind of homework problem

Simple as this looks, it still is a nonlinear and could be a bear to solve.
It does look somewhat familiar. Your best bet is to go to a library and look
at the book by Kempke that list many solved DE. It gives methods, but is in
German.

Bill
-- Ferme le Bush
NILS BÖRJESSON

Joined: 02 Nov 2005
Posts: 69

Posted: Thu Jun 22, 2006 8:32 am    Post subject: TEMPERATURE!!

[NOTE:T is the TEMPERATURE of PV=RT]
%%%%%%%
Given:
T''(x)+ T'(x)2/x + sqrt(T(x)) = 0
values:
T(0)=1
T'(0)=0

solve T(y)=0 to get the value of y at which T is 0

and calculate the limit:

lim T'(x)
x->y-

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