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47. (a) Since the brick is now horizontal and the cylinders were initially the same length
A
, then both have been compressed an equal amount
Δ
A
. Thus,
ΔΔ
A
A
A
A
==
FA
AE
F
AA
B
BB
and
which leads to
F
F
A
B
=
()
.
22
4
When we combine this ratio with the equation
F
A
+ F
B
= W
, we find
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 Spring '08
 Any
 Physics

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