A 70 Cu-30 Zn brass has an elastic modulus of 110 GPa (16,000,000 psi) and a yield strength of 140 MPa (20,000 psi).
1. Explain how much load can a 2.74-mm (.108-in) wire of this alloy support without yielding?
2. What is the total extension if a load of 55 kg (121lb) is supported by a 30.5-m (100-ft) wire of this size.