Question 1 1 pts What is the equilibrium number of vacancies per cubic meter of silver at 800C? The energy of vacancy formation is 1.10 eV/atom. The atomic weight and density for silver are 107.9 g/mol and 9.5 g/cm. O 3.6 x 1023 6.7 x 1021 O 3.2 x 1025 O 4.7 x 1025 During a tensile test on an advanced aluminum alloy, a true plastic strain of 0.20 is produced when a true stress of 600 MPa is applied. Based on other measurements, the strength coefficient (K) is 925 MPa. Calculate the true strain that results from the application of a true stress of 700 MPa. 20 1.50 0.05 0.355 2x10-5 A 100 mm length of #8 size round rebar (25.4 mm diameter) is loaded in tension. The rebar is measured to change length of 0.1mm under load. The rebar is constructed from A36 steel (E = 200 GPa, v = 0.26). In this application, the rebar will not deform plastically. What is the tensile load that is exerted on the rebar under these conditions? 75.1 kN 405.4 kN 263.5 kN 101.3 KN