Estimate the endurance strength Se of a steel shaft with diameter d=1.61 in, SUT=210 kpsi, cold drawn, subjected to rotating bending only. Further, estimate the fatigue strength Sf for N=800000 fully reversed cycles. Assume Nt=10³,Ne=10⁶. Use charts, tables, and equations from Chapter 6 and the Appendix. Answer tolerance =2%. Be sure to include units and the correct sign with your answers. kip =1000lbf. Calculations made in kpsi. Answers in psi_____