This preview shows page 1. Sign up to view the full content.
23. We introduce the notion of density,
/
mV
ρ
=
,
and convert to SI units: 1000 g = 1 kg,
and 100 cm = 1 m.
(a) The density
of a sample of iron is therefore
()
3
3
1kg
100 cm
7.87 g cm
1000 g
1 m
§·
§
·
=
¨¸
¨
¸
©¹
©
¹
which yields
= 7870 kg/m
3
. If we ignore the empty spaces between the closepacked
spheres, then the density of an individual iron atom will be the same as the density of any
iron sample. That is, if
M
is the mass and
V
is the volume of an atom, then
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 09/09/2008 for the course PHYS 100 taught by Professor Shylnov during the Spring '08 term at Illinois Tech.
 Spring '08
 shylnov
 Physics

Click to edit the document details