एक वास्तविक तरल (real fluid) जिसमें कर्तन प्रतिबल (shear stress) वेग प्रवणता (velocity gradient) के समानुपाती नहीं होता है, उसे क्या कहा जाता है?

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?