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A solid sphere refers to a three-dimensional geometric shape where all points on its surface are equidistant from its center. It has a continuous and uniform distribution of mass throughout.
The distance from the center point of a sphere or circle to any point on its surface.
Uniform Distribution: When something is evenly spread out over an area or space.
Center of Mass: The average position where all parts of an object can be considered as if they were concentrated into one point.