Calculate the Kinetic Energy, in Electron-Volts, of a Neutron That $7.2 \times 10 ^ { - 12 } \mathrm {~m}$

Short Answer

Calculate the kinetic energy, in electron-volts, of a neutron that has a de Broglie wavelength of $7.2 \times 10 ^ { - 12 } \mathrm {~m}$ ( $m _ { \text {neutron } } = 1.675 \times 10 ^ { - 27 } \mathrm {~kg} , 1 \mathrm { eV } = 1.6 \times 10 ^ { - 19 } \mathrm {~J} , h = 6.626$ $\times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s }$ )