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## Homework Statement

A solid cube of silver (density = 10.5 g/cm^3) has a mass of 90.0 g. (a) What is the resistance between the opposite faces of the cube? (b) If there is one conduction electron for each silver atom, what is the average drift speed of electrons when a potential difference of 1.00 x 10^-5 V is applied to opposite faces? (The atomic number of silver is 47, and its molar mass is 107.87 g/mol)

## Homework Equations

(listing all the equations given in the section this problem is relevant to)

**J**= [tex]\sigma[/tex]

**E**

**J**= nq

**v**[tex]_{d}[/tex]

R = [tex]\ell[/tex] / [tex]\sigma[/tex]A = [tex]\Delta[/tex]V / I

[tex]\rho[/tex] = 1 / [tex]\sigma[/tex]

R = [tex]\rho[/tex][tex]\ell[/tex] / A

## The Attempt at a Solution

I am completely clueless, at how to start. I think I'll have to use one of the R formulas somehow, but there seems to be too many unknown variables if I try to use any of those. Could someone help me get started?

The book's answer is (a) 777 n[tex]\Omega[/tex] (b) 3.28 [tex]\mu[/tex]m/S