Fluids Mechanics

Fluids Statics and Dynamics

Fluids Mechanics Principles

Articles
Title
A container is filled with water, as shown in the figure. A spigot is opened at the bottom of the container, and waterflows out.Use Bernoulli’s equation to derive an equation for the exit velocity of the water.
Firefighters use a hose with a 2-cm exit nozzle connected to a hydrant with an 8-cm-diameter opening toattack a fire on the second floor of a building 6 m above the hydrant, as shown in the figure. What pressure mustbe supplied at the hydrant to produce a
A variable-diameter pipe is used to supply water to a sprinkler system. Which of the sprinklers shown in thefigure will squirt water the highest? Justify your claim.
Two blocks of different sizes and masses float in a tray of water. Each block is half submerged, as shown inthe figure. Water has a density of 1,000 kg/m3. What can be concluded about the densities of the two blocks?
Four differently shaped sealed containers are completely filled with alcohol, as shown in the figure. Containers Aand B are cylindrical. Containers C and D are truncated conical shapes. The top and bottom diameters of thecontainers are shown.Which of the
Water flows at 8 m/s from two 3-cm-diameter pipes into one 6-cm-diameter pipe. Does the water speed up or slow down upon entering the 6-cm pipe? Justify your answer.
A block of cork density 240 kg/m^3 and volume 0.25 m^3 floats in water. What is the weight of the block?
An air bubble is released from the bottom of a swimming pool and ascends to the surface.(a) In a clear, coherent, paragraph-length response, describe any changes in the bubble size and describe themotion of the bubble as it ascends to the surface. Explain
Cube 1 has a density of p, volume of V, a mass of m, and a side dimension of x. Cube 2 is made of the samematerial and has a side dimension of 2x. What are the density, volume, and mass of cube 2 in terms of p, V, andm?
A raft with dimensions floats partially submerged in the ocean, as shown in the figure. The density of theocean water is r. Atmospheric pressure is Patm.(A) Write an algebraic equation for the water pressure exerted on the bottom of the raft.(B) Write an

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