> now I could be in trouble. hehe. but it seems like if you have x gal at
75
> and y gal at 55 and added them together we would have ( x+y ) at 72.
>
> 75 X + 55 Y = ( X + Y ) 72
>
> thus Y = ( 3/17 ) X
>
> so if there is 17 gallons at 75 then the answer is 3 gallons to fill a 20
> gallon tank. any more than 3 gallons is too much.
>
> I hate to say this but I am a Physicist. U of Illinois Champaign Urbana.
> hehe.
>
> but now I do something useful, I paint houses. hehe. I thought Physics
was
> going to tell me how the world worked. what was happening. but I found
out
> they don't know. they are trying to figure it out too. all they were
doing
> was taking each problem and dividing it in two. hehe. I became
discouraged.
>
>
> Now I know what the world is all about. it is a place of insane madness.
> hehe. the mind is insane. everything is insane. with that comes
happiness.
> hehe. as long as I keep reminding myself that I KNOW NOTHING.
>
> there is one problem with my solution. it is suppose to be worked out in
> Centigrade not Farenheit. but from the answer it is obvious that the the
> conversion units drop out at the end. but a formal solution would require
> the conversion to Centigrade before working it out.
>
> If I am wrong they might want to take my degree in Physics back. hehe.
>
> george arndt
> presently aquarist former physicist
>
>
> In a message dated 12/26/00 8:59:32 PM Eastern Standard Time,
> billandbonnie_at_peoplepc.com writes:
>
> << Subj: NANFA-- physic problem for aquarists
> Date: 12/26/00 8:59:32 PM Eastern Standard Time
> From: billandbonnie_at_peoplepc.com (William Allen jr.)
> Sender: owner-nanfa_at_aquaria.net
> Reply-to: nanfa_at_aquaria.net
> To: nanfa_at_aquaria.net
>
> OK, all you fishkeepers with a passing interest in physics (or physicists
> who keep fish), this ones for you -
>
> Given an aquarium holding X amount of water at 75 degrees F, what is the
> maximum amount of water (in terms of X) at 55 degrees F that you could
add
> and lower the temperature of the total less than 3 degrees F?
>
> For the purposes of the exercise, the air temperature surrounding the
> aquarium is also 75 degrees F, and discount any possible radiation or
> absorption from rocks, the glass, decorations, etc.
>
> Bill Allen >>
>
>
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