Question
A proton is confined to a space $1 \mathrm{fm}$ wide (about the size of an atomic nucleus). What's the minimum uncertainty in its velocity?
Step 1
The uncertainty in position, $\Delta x$, is given as $1 \, \text{fm} = 1 \times 10^{-15} \, \text{m}$. The mass of the proton, $m$, is $1.67 \times 10^{-27} \, \text{kg}$. Show more…
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