ME 2733 Chapter : 2016 Quiz 4
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Instructions: all responses must be legible (clearly written), print your name, student # and your answers. If you do not know your student #, leave the space blank: for each question, select and record the best answer. * problem 4 - c was also counted correct. Concentration of cu = weight of cu/total weight * 100. Number of grains in 4" x 3" micrograph. 40 n = number of grains per square inch = number of grains in micrograph / area of micrograph at 100x. G = astm grain size ln(n) =( g-1)ln2 ln(n)/ln(2)+1 = g. What is the composition of zinc in atomic percent (at%) in an alloy of copper and zinc with a copper concentration of 90 wt%. The density of zinc and copper is 7. 13 g/cm3 and 8. 94 g/cm3, respectively. The atomic weight of zinc and copper is 65. 41 amu and 63. 55 amu, respectively. concentration.
