(III) A scuba tank, when fully submerged, displaces 15.7 Lof seawater. The tank itself has a mass of 14.0 kg and,when “full,” contains 3.00 kg of air. Assuming only its weightand the buoyant force act on the tank, determine the netforce (magnitude and direction) on the fully submerged tankat the beginning of a dive (when it is full of air) and at the endof a dive (when it no longer contains any air).
Viscosity
The measure of the resistance of a fluid to flow is known as viscosity. Most fluids have some resistance to motion, the resistance provided by the fluid is called viscosity. This resistance is created by the force of attraction between the fluid molecules. If you pour water through a funnel, it flows easily and quickly, because it has very little resistance. But if you pour honey through a funnel, it may take a little time longer, as the density of honey is high.
Poiseuille's Law
The law of Poiseuille or Poiseuille's equation states that the pressure drop of an incompressible fluid especially a liquid in a laminar flow that passes through a cylindrical tube of length L, radius r, pressure gradient ΔP, and mainly depends on the viscosity of the fluid is nothing but the pressure difference of the layers of fluids. ΔP=P1-P2
Drag Forces
Forces that occur due to the movement of fluid are known as fluid mechanics. Following are the fluids present:
(III) A scuba tank, when fully submerged, displaces 15.7 L
of seawater. The tank itself has a mass of 14.0 kg and,
when “full,” contains 3.00 kg of air. Assuming only its weight
and the buoyant force act on the tank, determine the net
force (magnitude and direction) on the fully submerged tank
at the beginning of a dive (when it is full of air) and at the end
of a dive (when it no longer contains any air).
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