A 2.00-kg piece of wood slides on the surface shown. The curve slides are perfectly smooth but the rough horizontal bottom is 30m long and has a kinetic coefficient of 0.20 with the wood. The piece of wood starts from rest, 4.0m above the rough bottom. Point 1: the wood is located at the edge of the curve; point.2: just before the wood slides the rough part of the surface and point.3: when the wood stopped at the rough part of the surface because of friction. d. Is the total mechanical energy conserved from point 1 to 3? Why or why not? e. Is the total energy conserved from point 1 to 3? Explain.

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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.