A 1 lb weight is suspended from a 0.005 in diameter wire. The unstrained resistance of the wire, R0, is 270 ohm, and its unstrained length is L0=36 in. The wire's gauge factor is 3.2. a. Calculate the psi tensile stress on the loaded wire. b. Assume Young's modulus is 3.2x10^7 psi. Find the strain on the wire, and change R. c. Assume a Wheatstone bridge incorporates the wires as one arm. The other arms' resistance = R0. The bridge is excited with 5V dc. Find V0 due to the 1 lb load.