Three identical small balls are placed at the corners of an equilateral triangle as on the picture below. Find coordinates, Xcm and Ycm, of the center of mass (CM) of this system. The find (A) Moment of inertia relative to an axis through CM and parallel to the x- axis. ,(B) Moment of inertia relative to an axis through CM and parallel to the y-axis, , and (C) Moment of inertia relative to an axis through CM and parallel to the z-axis. 4. ( z-axis is perpendicular to the plane of the triangle and points out of the plane. a^2 in the answer list means a?).
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