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97.
REASONING
According to Equation 4.4, the weights of an object of mass
m
on
the surfaces of planet A (mass =
M
A
, radius =
R
) and planet B (mass =
M
B
, radius =
R
)
are
AB
22
and
GM m
GM m
WW
RR
==
The difference between these weights is given in the problem.
SOLUTION
The difference in weights is
()
A
B
2
––
–
GM m GM m
Gm
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This note was uploaded on 01/29/2010 for the course CALC 01:640:135 taught by Professor Soffer during the Spring '08 term at Rutgers.
 Spring '08
 SOFFER

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