The bar shown in Fig. below is subjected to a repeated moment 0≤M≤ 1000 lbf in. The bar is AISI 4430 steel with Sur = 185 kpsi, Sy = 170 kpsi, and Kic = 73 kpsi√vin. Material tests on various specimens of this material with identical heat treatment indicate worst-case constants of C = 3.8(10-11) (in/cycle)/(kpsi√/in)" and m = 3.0. As shown, a nick of size 0.005 in has been discovered on the bottom of the bar. Estimate the number of cycles of life remaining. M Nick M in -2