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## Homework Statement

well the problem is electron moving in an infinite poentail box of dimensions... calc all posible energy level in (eV)

## Homework Equations

E=h

^{2}/8M(n

_{x}

^{2}/a

^{2}+...

## The Attempt at a Solution

ok so no idea how they get h

^{2}/8M to = 37.6 h is planks constant the units are in m

^{4}kg s

^{-2}but eV is in m

^{2}kg s

^{-2}don't see how they get 37.6 for mass i used 9.11e-31