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70. Let
m
w
= 14 kg,
m
c
= 3.6 kg,
m
m
= 1.8 kg,
T
i
1
= 180°C,
T
i
2
= 16.0°C, and
T
f
= 18.0°C.
The specific heat
c
m
of the metal then satisfies
()
()()
21
0
w
w
c
mfi
m
m
fi
m
cm
cTT
m
c
TT
+−
+
−
=
which we solve for
c
m
:
(
)
(
)
(
)
2
14kg 4.18kJ/kg K 16.0 C 18.0 C
(3.6kg) 18.0 C 16.0 C
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 Spring '08
 Any
 Physics, Heat

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