1. If there was water in a U-Tube (full with water), with one sideclosed with a stopper, would the pressure at a point touching thestopper be greater than, less than, or equal to atmosphericpressure? Explain a little.
2. Would the pressure begin to increase as you go from the openpart of the U-Tube to the closed side? Or no?
3. If the water level was lowered (so the top of the water level ishalfway through one side of the U) would the pressure of differentpoints along the tube from the first question be lowered? or staythe same? Explain a little.