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The three masses shown in the figure are connected by massless, rigid rods

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The three masses shown in the figure are connected by massless, rigid rods. Part A: Find the coordinates of the center of gravity. (Answer in m) Part B: Find the moment of inertia about an axis that passes through mass A and is perpendicular to the page. (Answer in kg x m^2) Part C: Find the moment of inertia about an axis that passes through masses B and C. (Answer in kg x m^2)