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Article #129

Cell wall mass

#129
From: Jolt Joltist
Date: Sat, 26 Jan 2008 18:27
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I need help with some homework.

Cells can be 2.0 um in diameter and cell wall 50.0 nm thick.  If
density(mass divided by volume) of the wall material is the same as
that of water,  what is the mass in mg of the cell wall, assuming the
cell to be spherical and the wall to be a thin spherical shell?

How do you work this out?
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From: Jolt Joltist <joltist@hotmail.com>
Newsgroups: cu.physics.ugrads
Subject: Cell wall mass
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Date: Sat, 26 Jan 2008 10:27:07 -0800