A barrel contains a 0.120 m layer of oil floating on water that is 0.250 m deep. The density of the oil is 600 kg/m3. (a) What is the gauge pressure at the oil–water interface? (b) What is the gauge pressure at the bottom of the barrel?

a stiff, 15-cm-long tube with an inner diameter of 3.5 mm is attached to a small hole in the side of a tall beaker. the tube sticks out horizontally. the beaker is filled with 20⁰c water to a level 50 cm above the hole, and it is continually topped off to it maintain that level. What is volume flow rate through the tube? The viscosity of water is 1.0×10^-3 Pa×s.

A piece of aluminum has density 2700 kg/m 3 and mass 770 g. The aluminum is suspended on a spring scale, and submerged in a container of oil. This oil has a density of 650kg/m 3. What reading will the scale register in grams (g) for the submerged metal?

You come across an open container that is filled with two liquids. Since the two liquids have different densities, there is a distinct separation between them. Water, which has a density of ?w=1.00×103 kg/m3, fills the lower portion of the container to a depth of 0.215 m. The fluid that is floating on top of the water is 0.307 m deep. If the absolute pressure on the bottom of the container is 1.049×105 Pa, what is the density, ?l, of the unknown fluid? The acceleration due to gravity is ?=9.81 m/s2 and atmospheric pressure is ?0=1.013×105 Pa.