The questions are in the top right. How do I find the answer to questions A3 through C3?

UPDATE: slopes from log-log graph

log(resistivitity) vs log(T) 0 A3) Estimate the total resistivity of a hypothetical 2.35% by weight Ni-Cu specimen at 300K. 0.5 1 1.5 2 2.5 3.5 -Z -4 log(Resistivity) [loglohm-m)] c1) Using the value from A.3 and the resistivity of pure Cu at 300K, estimate the value of Pimpurity for the 2.35% Ni-Cu specimen (Table 2 below). -6 -10 C2) Use your value from C.1 and the resistivity of "pure" Cu at 250K to estimate the resistivity of the 2.35% Ni-Cu specimen at 250K (Table 2 below). -12 Pure copper Resistivity TIK) (ohm.m) 1 2E-11 4 2E-11 7 2E-11 - 10 2.02E-11 15 2.18E-11 20 2.8E-11 25 4.49E-11 30 8.28E-11 35 1.47E-10 40 2.39E-10 45 3.58E-10 50 5.16E-10 55 7.27E-10 60 9.71E-10 70 1.54E-09 80 2.15E-09 90 2.81E-09 100 3.48E-09 125 5.22E-09 150 6.99E-09 175 8.74E-09 200 1.05E-08 225 1.22E-08 250 1.39E-08 273 1.54E-08 293 1.68E-08 300 1.72E-08 350 2.06E-08 400 2.4E-08 500 3.09E-08 600 3.79E-08 700 4.51E-08 800 5.26E-08 900 6.04E-OS 1000 6.86E-08 1100 7.72E-08 1200 8.63E-08 log|T) [log(K)] C3) Estimate the resistivity of the 2.35% Ni-Cu specimen at 45K (Table 2 below). Figure 2. Log-Log plot of resistivity versus temperature for pure copper from which you identify the three different temperature regimes and calculate the power law exponent, n (enter in Table 1 below). Table 1. Summary of data from Figure 2. your log-log plot Region Approximate Value of exponent, n Temperature range T(K) I II III Table 2. Resistivity of Cu-Ni at various temperatures Pimpurity for the 2.35% Ni-Cu specimen Resistivity of a 2.35% Ni-Cu specimen at 250K Resistivity of a 2.35% Ni-Cu specimen at 45K 1100 ACAA Table 1. Summary of data from Figure 2, your log-log plot Region Approximate Value of exponent, n Temperature range T(K) I 1-15 0.0217 II 20-100 3.1716 125-1300 1.1938 III log(resistivitity) vs log(T) 0 A3) Estimate the total resistivity of a hypothetical 2.35% by weight Ni-Cu specimen at 300K. 0.5 1 1.5 2 2.5 3.5 -Z -4 log(Resistivity) [loglohm-m)] c1) Using the value from A.3 and the resistivity of pure Cu at 300K, estimate the value of Pimpurity for the 2.35% Ni-Cu specimen (Table 2 below). -6 -10 C2) Use your value from C.1 and the resistivity of "pure" Cu at 250K to estimate the resistivity of the 2.35% Ni-Cu specimen at 250K (Table 2 below). -12 Pure copper Resistivity TIK) (ohm.m) 1 2E-11 4 2E-11 7 2E-11 - 10 2.02E-11 15 2.18E-11 20 2.8E-11 25 4.49E-11 30 8.28E-11 35 1.47E-10 40 2.39E-10 45 3.58E-10 50 5.16E-10 55 7.27E-10 60 9.71E-10 70 1.54E-09 80 2.15E-09 90 2.81E-09 100 3.48E-09 125 5.22E-09 150 6.99E-09 175 8.74E-09 200 1.05E-08 225 1.22E-08 250 1.39E-08 273 1.54E-08 293 1.68E-08 300 1.72E-08 350 2.06E-08 400 2.4E-08 500 3.09E-08 600 3.79E-08 700 4.51E-08 800 5.26E-08 900 6.04E-OS 1000 6.86E-08 1100 7.72E-08 1200 8.63E-08 log|T) [log(K)] C3) Estimate the resistivity of the 2.35% Ni-Cu specimen at 45K (Table 2 below). Figure 2. Log-Log plot of resistivity versus temperature for pure copper from which you identify the three different temperature regimes and calculate the power law exponent, n (enter in Table 1 below). Table 1. Summary of data from Figure 2. your log-log plot Region Approximate Value of exponent, n Temperature range T(K) I II III Table 2. Resistivity of Cu-Ni at various temperatures Pimpurity for the 2.35% Ni-Cu specimen Resistivity of a 2.35% Ni-Cu specimen at 250K Resistivity of a 2.35% Ni-Cu specimen at 45K 1100 ACAA Table 1. Summary of data from Figure 2, your log-log plot Region Approximate Value of exponent, n Temperature range T(K) I 1-15 0.0217 II 20-100 3.1716 125-1300 1.1938