SG1 SG3 SG3 SG1 (back of the (Front of material) material) Gain (G) + SG2 SG4 SG2 (Front of SG4 (back of the material) material) GND S D AR AR F Remember, for one SG: Vol = VG 4p ; and = GF . G ;0= R Ai = - VE ; E = Note that in our in-class examples, V was 0.25... Here, it is the unknown. fact 1: You know that after hanging a mass of 10kg on the bottom of the Kryptonite, the material has length 50cm (L, top to bottom) x 10cm (S, one side of the top and bottom surface) x 5cm (D, the other side of the top and bottom surface). fact 2: Kryptonite has a Young's Modulus of E=1x109 N/m2 fact 3: The gauge factor (GF) for each strain gauge is 2.0 fact 4: You made one preliminary measurement in the loaded condition, with an excitation voltage ( Vex) of 1V, and using a differential gain of 100,000 (G). You recorded a Vo= out= -2.99V... note, minus sign