1. The problem statement, all variables and given/known data A tuning fork has a frequency of 440 Hz. A) What is the size of one quantum of energy of vibration? B) To approximately what temperature would the fork have to be cooled before equipartition would cease to apply to its thermal motions? 2. Relevant equations 3. The attempt at a solution A) 440 * h (Plank's constant) B) ?? How does equipartition cease to apply?