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Fluids Mechanics

Fluids Statics and Dynamics

Fluids Statics and Dynamics

Fluids Mechanics Principles
A string holds a 10-cm × 10-cm × 20-cm block of wood with a density of 600 kg/m3 underwater, as shown in thefigure.Draw a force diagram, making sure that all the forces are drawn to relative scale.
A mass (m) is suspended in a fluid of density (r) by a thin string, as shown in the figure. The tension in thestring is T. Which of the following is an appropriate equation for the buoyancy force? Select two answers.
The figure shows a gas trapped in a spherical container connected to a tube filled with oil that has a density of930 kg/m3. The top end of the tube is open to the atmosphere, which has a pressure of 100 kPa.Is the pressure of the trapped gas higher or low
Water flows at 8 m/s from two 3-cm-diameter pipes into one 6-cm-diameter pipe. Calculate the speed of the water in the 6-cm pipe.
The figure shows a gas trapped in a spherical container connected to a tube filled with oil that has a density of930 kg/m3. The top end of the tube is open to the atmosphere, which has a pressure of 100 kPa.The oil is higher on one side by the distance h
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.
Explain the physics mechanism that results in the buoyancy force.
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?
Fluid enters the left side of the flow tube and exits the right side at a higher velocity, as predicted by the continuityequation.Fill in the pressure-energy density bar chart for the fluid-earth system, and use it to explain changes in thefluid pressure

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