# Problem: A proton is confined to a space 1 fm wide (about the size of the atomic nucleus). What is the minimum uncertainty in its velocity?

###### FREE Expert Solution

Heisenberg Uncertainty Principle:

$\overline{){\mathbf{∆}}{\mathbf{x}}{\mathbf{·}}{\mathbf{∆}}{\mathbf{p}}{\mathbf{\ge }}\frac{\mathbf{h}}{\mathbf{4}\mathbf{\pi }}}$

Δx is the uncertainty in the position while Δp is the uncertainty in the momentum.

m = 1.67 × 10-27 kg

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###### Problem Details

A proton is confined to a space 1 fm wide (about the size of the atomic nucleus). What is the minimum uncertainty in its velocity?