A solid cube of iron (density = 7.87 g/cm3) has a mass of 88.0 g.
(a) What is the resistance between opposite faces of the cube?
___? omega
(b) Assume each iron atom contributes one conduction electron. Find the average drift speed of electrons when a potential difference of 1.40 10^-5 V is applied to opposite faces. The atomic number of iron is 26 and its molar mass is 55.85 g/mol.
___? µm/s