1. The problem statement, all variables and given/known data Hello, I need to calculate the expectation value for position and momentum for a wavefunction that fulfills the following relation: ψ0(-x)=ψ0(x)=ψ*0(x) The wave function is normalised. 2. Relevant equations There is also a second wave equation that is orthogonal to the first: ψ1=Nd0/dx I also need to calculate <x> and <p> for this wavefunction, also normalised. 3. The attempt at a solution I am tempted to go ahead and say that the expectation value for position for both wavefunctions is 0, as they are both even. As for momentum I am not certain as to how i should proceed, inserting the relevant operator just seems to indicate to me momentum will be zero.