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102. (a) We assume his mass is between
m
1
= 50 kg and
m
2
= 70 kg (corresponding to a
weight between 110 lb and 154 lb). His increase in gravitational potential energy is
therefore in the range
55
12
21
0
31
0
mgh
U mgh
U
≤Δ ≤
¡
×≤
Δ
≤
×
in SI units (J), where
h
= 443 m.
(b) The problem only asks for the amount of internal energy which converts into
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics, Energy, Mass, Potential Energy

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