A brass alloy with an elastic modulus of 2x 10' MPa, y = 120 MPa and =200 MPa, shows 25% reduction in cross sectional are at fracture. Given: E = 2 x 105 MPa Calculate: a) Strain at yielding (6 pts.) O52x105 O25x 10-3 O34x102 06x10+ b) True strain at fracture assuming no volume change (7 pts.) 60036 00139 Co 288 O0.56 c) Modulus of resielence (6 pts.) O0.036 MPa O0.46 MPa O0.139 MPa O0.516 MPa d) Modulus of toughness (6 pts.) 062.51 MPa 0312.9 MPa 0125.06 MPa 046.08 MPa