2003 Thomson - Brooks/Cole 130° 30°1 A stainless steel orthodontic wire is applied to a tooth,...
A wire of unknown material with a cross-sectional area of 1 mm^2 and an unstretched length of 0.5 m is stretched through the application of known forces. From the plot of force as a function of Delta L in the figure, the Young's modulus of the material is: A. 4 times 10^10 N/m^2 B. 80 N/m^2 C. 40 N/m^2 D. 8 times 10^10 N/m^2 E. none of the above