Question 4 1 pts A wire made from a composite material is shaped into a cylinder...
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
Figure shows the stress versus strain plot for a material that is stretched by a machine pulling in opposite directions at the two ends of the wire. The wire has an initial length of Lin meter and an initial cross-sectional area of A in meter-square. How much work does the force from the machine do on the wire to produce the strain? stress strain Select one: O AL/(area under stress versus strain graph) o Ax(area under stress versus strain graph)/L...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional area A stressed by a force of magnitude F. As a result, the bar stretches by AL (Figure 1) Let us define two new terms: • Tensile stress is the ratio of the stretching force to the cross-sectional area: stress = 5 • Tensile strain is the ratio of the elongation of the rod to the initial length of the bar strain= 41 It...