A rotating beam steel specimen (SUT = 75 ksi) is loaded with two weights (F = 66lb) as shown. The loading produces a fully reversed stress case (mean stress = 0). At how many cycles do you expect the sample to break? (Assume failure occurs at 0.9SUT after 10 cycles and 0.5SUT after 106 cycles and the failure line is linear when plotted on a log-log scale as shown in Fig. 6-8 from the text (and in the notes).) (linear dimensions shown are in inches) 2.25 6.50 0.30 F F 225