एक आयताकार ओरिफिस को 'लघु ओरिफिस' (small orifice) माना जाता है यदि ओरिफिस के केंद्र के ऊपर द्रव का हेड:

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?