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Among the attributes listed - motion, position, density, and shape - the attribute that is not associated with mechanical energy is C) density.
Explanation:
1. Mechanical energy is related to the movement and position of objects, as well as their shape, but not directly to their density.
2. Density refers to how much mass is contained in a given volume. It is a property of matter that does not impact the mechanical energy of an object.
3. Motion and position are crucial components of mechanical energy as they determine the kinetic energy and potential energy of an object.
4. Shape can also influence mechanical energy, for example, an object's shape can affect its potential energy depending on its position and orientation.
In summary, density is not typically considered a direct attribute associated with mechanical energy, unlike motion, position, and shape which play significant roles in determining the mechanical energy of an object.
