[填空题]
Estimate the lowest m j nj6okw*0n2po4hp8w 6fa:a0zztg c2yssible energy of a neutron contained in a typical nucleus a2yztp8 6g 0 4az:fwchof radius $1.0 \times 10^{-15} \, \text{m}$. [Hint: A particle can have an energy at least as large as its uncertainty.]
$\frac{\hbar}{\Delta x} $= $\times 10^{-19}\ \text{kg} \cdot \text{m/s}$
E = Mev
