A 2.75-g copper coin at 22.5C drops 45.0 m to the ground. (a) Assuming 50.0% of the change in gravitational potential energy of the coin-Earth system goes into increasing the internal energy of the coin, determine the coin's final temperature. 787.3 X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. C (b) Does the result depend on the mass of the coin