When an inelastic material is in a collision, A) a. the work done to deform the material is equal to the work done to return the material to its original shape. B b. the work done to deform the material is equal to the work the material does to other objects in the collision. c) c. the work done to deform the material is equal to the increase in the system's total kinetic energy. (D) d. some of the work done to deform the material is converted to other forms of energy. E e. No answer

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Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.