According to information found in an old hydraulics book, the energy lost per unit weight of fluid flowing through a nozzle connected to a hose can be estimated by the formula h = (0.04 to 0.09) (D/d) ⁴ V²/ 2g. Where h is the energy loss per unit weight, D the hose diameter, d the nozzle tip diameter, V the fluid velocity in the hose, and g the acceleration of gravity, do you think this equation is valid in any system of units? Explain.