( 4 ) Consider two indistinguishable, noninteracting Spin -1 fermions in a one-dimensional infinite Square well potential of length L ") what is the ground-state energy of this system b ) what is the ground-state wave function? ( ) what is the first excited state energy? J) what is the first excited state wave function ? e) what is the degeneracy of the first excited state f ) Discuss gan qualitatively how the excited-state energies changeif we consider the particles to be interacting through the Coulomb potential