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Find the location of the center of mass for following objects :
(i) A disk of uniform density which has a hole cut out of it, as shown in the figure left
below.
(ii) A uniform plate of the form shown in the figure right below.
1
a
2a
21
41
21
21
F
21
21
21 21
(iii) A solid tetrahedron of uniform mass distribution.
(iv) A homogeneous circular pyramid with base radius a and height h.

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