اسئلة في ميكانيكا الموائع

the human lungs can operate against a pressure differential uo to about 1/20 of an atomspheric .if a diver uses a snorkel for breathing .about how far below water level can he swim??
a sample , U-tube contains mercury 11.2 cm of water is poured into the right arm of the tube , as shown in figure 8.13 how high above its inital level does the mercury rise in the left arm??

a piston of small cross-sectional area (a) is used in a hydraulic press to exert a small force f on the enclosed liquid . a connecting pipe leads to a larger piston of cross-sectional area A figure 8.15 if the small piston has a diameter of 3.00 cm ad the large piston has of 40.0 cm what weight on the small piston will support 2.00 tons on the large piston??

A sphere floats in water with 0.50 of its volume submerged This same sphere flaots in oil with0.60 ofits volume submerged . determine the densities of the sphere and the oil??

A water hse 2.00 cm in diameter is used to fill a 20.0 liter bucket . If it takes 1.00 min to fill the bucket , what is the speed v at which the water leaves the hose ??