If I considered increasing the diameter of my car wheels by an inch (from 17 inches to 18 inches) would the speedometer be inaccurate? If so, by how much? Show your work. If you made any assumptions, clearly indicate those.  Then state if you think the change would be worth it.

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Q: Convert 30 miles per hour to m/s. Show your work in detail.

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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.