If the clutch is engaged & turning, there should be no problem getting freon into the system, unless the orifice tube is plugged.
pressure gradient
Root pressure tries to keep the water flowing but transpiration loses water from the leaves
Due to friction between the fluid and the walls of the pipe, pressure increases within the pipe.
A faucet and spray paint unfortunately I can't think of a third one I hope this helps though!
Technology design involve a knowledge of the flowing properties of materials. Viscosity is dependent on temperature and pressure.
soft and flowingsoft and flowing
Wind
Water flowing out of the ground is a spring. An artesian well is one example of water under pressure flowing out of the ground.
pressure gradient
yes
The energy behind a fire hydrant that is not flowing water is known as "static pressure". This is the water pressure that is normally available from the water main when the hydrant is closed.
the pressure whose pressure is to be calculated is flowing agaunst gravity
yes blood is still flowing
Root pressure tries to keep the water flowing but transpiration loses water from the leaves
The definition of pump shut-in pressure is the amount of pressure that is generated by the pump when it is at zero flow, or not flowing. This can also be called "dead head pressure."
There really isn't any statistics. A naturally flowing well must have a well head pressure sufficiently above atmospheric to be able to flow into the separator. A well under natural pressure depletion and flowing conditions will have a declining wellhead pressure, but if artificial lift is installed, the well head pressure can markedly increase.
"Head" is a term given to the weight and resulting pressure of a column of liquid above a given point in the system. Static head means that the head pressure is measured with no liquid actually flowing. Dynamic head would be the pressure of the liquid while it is actually flowing.