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OpenStudy (anonymous):
A geometry question
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OpenStudy (anonymous):
what question?
OpenStudy (anonymous):
http://upload.wikimedia.org/wikipedia/commons/2/27/Shell-diag-1.png If the area of the shell is 4r^2pi, why is the surface of the thin slice between θ and θ + dθ \[2\pi r^2 \sin \theta d \theta\]
OpenStudy (anonymous):
From http://en.wikipedia.org/wiki/Shell_theorem#Outside_the_shell, if you're interested
OpenStudy (experimentx):
|dw:1334184304637:dw|
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