2. A particle of mass m in an infinite square well of width a has the initial wave function It Butt, 0) : Asinz (Ex) in the interval 0 {], to solve most integrals in this problem.) The normalization factor A. The probability of an energy measurement that yields nzZ/Zmaz. The probability of an energy measurement that yields the same result as above at a later time t. The energy expectation value. (Hint: you may want to use the \"oldfashioned" way as described in the textbook Problem 2.9.) aria-m