Chapter 6, Problem 41QP

Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room temperature. These neutrons are most effective is initiating a nuclear chain reaction among ${}^{\text{235}}\text{U}$ isotopes. Calculate the wavelength (in am) associated with a beam of neutrons moving at $\text{7}{\text{.00 × 10}}^{\text{2}}\text{m/s (mass of a neutron= 1}{\text{.675 × 10}}^{\text{-27}}\text{kg)}$.