Answer
The electrons flow at a rate of $~~2.60\times 10^{19}~electrons/second$
Work Step by Step
In part (a), we found that $R = 28.8~\Omega$
We can find the current:
$i = \frac{V}{R}$
$i = \frac{120~V}{28.8~\Omega}$
$i = 4.1667~A$
We can find the number of electrons each second:
$\frac{4.1667~A}{1.6\times 10^{-19}~C} = 2.60\times 10^{19}~electrons/second$
The electrons flow at a rate of $~~2.60\times 10^{19}~electrons/second$
