A solid cube of iron density 787 gcm3 has a mass of 880 g, Physics

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A solid cube of iron density 787 gcm3 has a mass of 880 g

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

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Physics: A solid cube of iron density 787 gcm3 has a mass of 880 g

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