Main Question or Discussion Point
Say I have a device that looks like a large syringe, filled with some liquid (water). On the "plunger" side I have a flat plate say, that holds the water in the cylinder. On the "nozzle" side, the water is hold in by some cover. I eject the water by striking the flat plate with a weight of mass "m" moving at a velocity "v" (which knocks off the cover). Say the plate is of diameter "D" and the nozzle is of diameter "d". Is it possible to calculate the time it takes to eject all the water from the cylinder. Does it depend on the viscosity?