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12.5.
Model:
The earth and moon are particles.
Visualize:
Choosing
0 m
E
x
=
sets the coordinate origin at the center of the earth so that the center of mass location is the
distance from the center of the earth.
Solve:
( )( ) ( )( )
24
22
8
EE
MM
cm
24
22
EM
6
5.98 10 kg
0 m
7.36 10 kg
3.84 10 m
4.67 10 m
mx mx
x
mm
×+
×
×
+
==
+×
+
×
=×
Assess:
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This note was uploaded on 12/10/2011 for the course PHYS 1211 taught by Professor Geller during the Fall '09 term at University of Georgia Athens.
 Fall '09
 geller
 Center Of Mass, Mass

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