Thus, ()( )3813922 1.2 10 m30m7.2 10bL−=×=×. One can see that 2bLTe−≈is very small (essentially zero). 80. The kinetic energy of the car of mass mmoving at speed vis given by Emv=122, while the potential barrier it has to tunnel through is Ub= mgh, where h= 24 m. According to Eq. 38-21 and 38-22 the tunneling probability is given by
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