Two water pipes of the same length have inside diameters of 6 cm and8 cm. These two pipes are replaced by a single pipe of the same length,which has the same capacity as the smaller pipes combined. What is the inside diameter of the new pipe?

A lost shipping container is found resting on the ocean floor and completely submerged. The container is 5.9 m long, 2.8 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When the balloon's radius is 1.7 m, the shipping container just begins to rise towards the surface. What is the mass of the container? Ignore the mass of the balloon and the air within it. Do not neglect the buoyant force exerted on the shipping container by the water. The density of seawater is 1025 kg/m3.

A simple U-tube contains mercury. When 11.2 cm of water is poured into the right arm, how high does the mercury rise in the left arm from its initial level?

A cylindrical tank of height 2.00 m and diameter 1.50 m is full of beer of density 1.05X103 kg/m3. Beer is discharged through a small valve of diameter 3.0 cm and 20 cm near the bottom of the tank. Beer flux is defined as the amount of beer discharged per second. a) When the beer level is 1.50 m high, what is the speed of discharged beer? What is the beer flux? b) How many minutes does it take to drain the beer?