Problem 1.34 a

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Transcript Problem 1.34 a 

1.34 The average density of the Earth is 5.52 g/cm3.
What is its density kg/m3?
...in lb/ft3?
5.52 g
1 cm3
1 kg

1 cm

110-2 m
1000 g
cmcmcm

1 cm
110-2 m

1 cm
110-2 m
=
5.52 103 kg/m3
Alternately....
3
5.52 g
1 cm3
1 kg

.
5
2
 1
0
=
110-2 m
1000 g
cmcmcm
5
1 cm

0
0
 1
EE
2
5.52 103 kg/m3
+/-
yx
3
=
5520 kg/m3
3 sig. figs