Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 43.1 degrees and 47.9 degrees, respectively , with the tensile axis. If the critical resolved shear stress is 20.7 MPa (3000 psi), will an applied stress of 45 MPa (6500 psi) cause the single crystal to yield? If not, what stress will be necessary?