An 8.0-mm (0.31in.) diameter cylindrical rod fabricated from a red brass alloy (Figure 8.34) is subjected to reversed tension–compression load cycling along its axis. If the maximum tensile and compressive loads are +7500 N (1700lbf) and -7500 N (-1700 lbf), respectively, determine its fatigue life. Assume that the stress plotted in Figure 8.34 is stress amplitude. [5 pts] INDICATE ANSWER ON THE GRAPH.

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.