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April 25, 2014

Homework Help: physics

Posted by Anonymous on Sunday, March 6, 2011 at 3:43pm.

A thin rectangular plate of uniform area density σ1 = 1.00 kg/m2 has a length a = 0.500 m and a width b = 0.210 m. The lower left corner is placed at the origin, (x, y) = (0, 0). A circular hole of radius r = 0.040 m with center at (x, y) = (0.057 m, 0.057 m) is cut in the plate. The hole is plugged with a disk of the same radius that is composed of another material of uniform area density σ2 = 5.31 kg/m2. What is the distance from the origin of the resulting plate's center of mass?

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