I don't get this problem! Please show work. Thanks!!

The de Broglie wavelength of a proton in a particle accelerator is 3.60 x 10^-14 m. Determine the kinetic energy (in joules) of the proton.

λ =h/p, p=h/ λ,

KE = p^2/2•m = h^2/2•m•λ^2= 6.63•10^-34)^2/2•1.67•10^-27•3.6•10^-14)^2 =1.02•10^-13 J.