Exercise 54 gives a rough lifetime for a trapped particle to escape an enclosure by tunnel...

Exercise 54 gives a rough lifetime for a trapped particle to escape an enclosure by tunneling, (a) Consider an electron. Given that W = 100 nm, L = 1 nm, and U0 = 5 eV, first verify that the Eground0 assumption holds, then evaluate the lifetime, (b) Repeat part (a), but for a 0.1 [.ig particle, with W = 1 mm, L = 1μm, and a barrier height U0 that equals the energy the particle would have if its speed were just 1 mm per year.