A solid glass sphere has a weight of 21.0 lbs in air and an apparent weight of 14.0 lbs when immersed in Turpentine. When immersed in water, the apparent weight is 11.6 lbs. Calculate the specific gravity of the glass and the that of the turpentine. Find the density of each. Include Figure/FBD

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Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.