A silver wire has a cross$-$sectional area a equals $2\mathrm{.}0$ MM squared and a total of $9\mathrm{.}4\backslash$times $10$ to the $18$th electrons passed through the wire in $3\mathrm{.}0$ seconds the conduction electron density and silver is $5\mathrm{.}8\backslash$times $10$ of the $28$th electrons per meter to the third power and E equals $1\mathrm{.}6\backslash$times $10$ to the $-19$ C what is the drift velocity of these electrons?