The pressure loss (AP) for flow in apipe can bedetermined from the Darcy-Weisbach equation: \Delta P=f \frac{L}{D} \frac{\rho V^{2}}{2}: \text { where } \Delta P \text { has units of

} \mathrm{kPa}, L and D has units of meters, p has units of kg/m³, and V has units of m/s. What are the units of f? m----m/s------1/s----no units