Three ice skaters meet at the center of a rink and each stands at rest facing the center, within arm's reach of the other two. On a signal, each skater pushes himself away from the other two across the frictionless ice. After the push, skater A with mass m, = 70.0 kg moves in the negative y-direction at 3.00 m/s and skater B with mass ma = 75.0 kg moves in the negative x-direction at 2.00 m/s. Find the x- and y-components of the 90.0 kg skater C's velocity (in m/s) after the push. HINT m/s m/s

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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.