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39. Let
i
V
be the total volume of the iceberg. The nonvisible portion is below water, and
thus the volume of this portion is equal to the volume
f
V
of the fluid displaced by the
iceberg. The fraction of the iceberg that is visible is
frac
1
if
f
ii
VV
V
−
==
−
.
Since iceberg is floating, Eq. 1418 applies:
.
g
i
f
Fm
g
m
g
mm
¡
=
Since
mV
ρ
=
, the above equation implies
f
i
f f
V
V
ρρ
=
¡
=
.
Thus, the visible fraction is
frac 1
1
f
i
V
V
=− =−
(a) If the iceberg (
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 Spring '08
 Any
 Physics

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