When a potential difference of \(1.00 \mathrm{~V}\) is maintained between opposing faces of a metal that has a charge carrier number density of \(n=6.60 \times 10^{28}\) charge carriers \(/ \mathrm{m}^{3}\), the cube carries current \(I=6.10 \times 10^{5} \mathrm{~A}\). What is the average time interval \(\tau\) between collisions in this metal if each side of the cube is \(10.0 \mathrm{~mm}\) long?