If a velocity distribution is given by uU = 1 - yδ, where u is the velocity at a distance y from the plate, and u = U at y = δ (where δ is the boundary layer thickness), then the momentum thickness θ will be:

The ratio of the specific weight of a liquid to the specific weight of a standard fluid is known as:

The magnitude of the buoyant force depends on the _____________.

In incompressible fluid dynamics, the continuity equation is ∂u/∂x + ∂v/∂y + ∂w/∂z = 0. What physical law does this equation represent?