A particle is confined in a cubic box, each side measures 1 Angstrom. The mass of the particle is 10^30 kg. The potential energy inside the box is…

A particle is confined in a cubic box, each side measures 1 Angstrom. The mass of the particle is 10^−30 kg. The potential energy inside the box is zero, outside the box it is infinite. Use the Heisenberg uncertainty principle to find the lowest possible momentum for the particle and calculate the lowest possible energy for this particle in eV.