Consider a 1-cm³ of Cu, which is subjected to a shear stress such that slip takes place on a (110) plane and in a [110] direction. The crystal is oriented so that slip planes are parallel to the top and bottom surfaces of the crystal. Assume that slip plane spacing is a√√2, where a= (2√2) R for an FCC metal. R (atomic radius) = 0.1278 nm. (a) An edge dislocation with b = (a/2)[110] passes one-third way through the crystal on every fifth plane. What is the shear strain? (b) Calculate the dislocation density, p, after the deformation of the type just described.