Projectile A with mass m is launched at an angle of 20°above the horizontal with a speed v0. Projectile B also with mass m is launched from the same location at an angle of 70°above the horizontal, also with speed v0. Thus, both projectiles have the same initial total energy. a.Which projectile has a larger speed when it hits the groundor do they have the same speed? Explain using energy. b.Which projectile reaches a greater height?Given that both projectiles have the same initial energy, how is this possible?What must be true about the kinetic energy of the projectiles at their maximum height?

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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.