1. The problem statement, all variables and given/known data an electron is trapped in a sphere whose diameter is 52 x 10-15 m. What is the minimum uncertainty in the electron's momentum? 2. Relevant equations I know that the uncertainty in the electron's position is equal to the diameter... but how do I set up the equation? 3. The attempt at a solution p = h / d. I plugged in 6.626E-34 for h and the diameter given. Is this correct?