Re: Surface area of spheres
- From: David Littlewood <david@xxxxxxxxxxxxxxxxxx>
- Date: Mon, 9 Mar 2009 11:38:57 +0000
In article <5gp8r4p56nuh5gdbakl8ovsdqi8bl199he@xxxxxxx>, Gary G <see.signature@bottom.?.invalid> writes
Hi all:Gary,
I have an unusual question that perhaps someone on the list
can answer.
I have 2g of 350u diameter spheres. Given this data, what is
the resulting total surface area of these spheres and how
does one compute this figure?
Of course I could probably manually count how many spheres there
are but is there a more direct and efficient approach?
Do you know the density of the material? If so, then the total weight, the volume of each sphere and the material density will allow you to calculate how many spheres there are, and thus (from this number times area of each sphere, 4*pi*r^2) the total surface area present.
Alternatively, if you don't know what the material is, and hence don't know it's density, you can work it out from the volume data you quoted in the second post.
David
--
David Littlewood
.
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- Surface area of spheres
- From: Gary G
- Surface area of spheres
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