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An electron is confined to a box the size of a small atom, 0.15 nm across....

An electron is confined to a box the size of a small atom, 0.15 nm across.

Part A: What's the uncertainty in the electron's momentum? Answer: 3.5x10^-25 kg*m/s

Part B: Suppose the momentum is just equal to the minimum uncertainty value you computed in part A. What's the electron's energy? Answer: K= 6.8x10^-20 J

Part C: (This is the part Im struggling with) What wavelength photon would have the same energy?

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