Choose all that are CORRECT. A. Forces acting on flowing fluids can cause them to speed up or slow down, change direction, and/or change their velocity profile. B. Direction doesn't matter for the linear momentum equation. C.For fluxes into a translating control volume, we need to consider the relative velocity across the control surface. D.We need to consider atmospheric pressure forces on a control volume. E. A coordinate system moving at constant velocity in a straight line is inertial. F.If we want to use the average velocity to calculate a mass flux, we need to include a correction factor B