An electron with energy E = 1.5 eV is in a one-dimensional potential well, shown in the figure. The width of the well is d = 3 • 10-8 cm. Find the height of the potential barrier U0 and its transparency D. During what time t will the probability of finding a particle in the well decrease in 2 times? Neglect the reflection of the wave function at the rear boundary of the potential barrier.

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