Fluids Mechanics

Fluids Statics and Dynamics

Fluids Mechanics Principles

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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
Explain why objects with a density greater than that of water will sink. Prove your explanation with an equation.
A container is filled with water, as shown in the figure. A spigot is opened at the bottom of the container, and waterflows out.Fill in the pressure-energy density bar chart for the fluid-earth system.
The figure shows a pump fitted with a piston and a handle. The pump is connected by tubing to three cylindricalcontainers. The area of each cylinder is given in terms of A (the area of the pump). The heights of the pump andcylinders are given in terms of
The figure shows four cubes of the same volume at rest in a container of water. Cube C is partiallysubmerged. Cubes A, B, and D are fully submerged, with B resting on the bottom of the container. Which of thefollowing correctly ranks the densities (r) of
A 1.0-cm-radius hose with a 0.50-cm-radius exit nozzle is being used to fill a 1,000-ml beaker with oil (1,000ml = 0.0010 m3). The velocity of the oil in the hose is v = 0.40 m/s as shown in the figure. The density of the oil is960 kg/m3, and the atmosphe
Blood cells pass through an artery that has a buildup of plaque along both walls, as shown in the figure.Which of the following correctly describes the behavior of the blood cells as they move from the right side of thefigure through the area of plaque? A
A river narrows as it passes through a canyon.(A) What happens to the volume flow rate of the water in the river as it passes through the canyon? Explain usinga conservation law.(B) What happens to the speed of the water in the river as it passes through
A very tall cylinder with a movable piston is placed in a lake. The piston is pulled up, drawing lake water in andupward, as shown in the figure.Is there a limit to how high water can be drawn up the piston? Write an algebraic expression that supportsyour
The force on the bottom of a swimming pool must increase when a person is floating in the pool. Explain thisbehavior(A) using Newton’s third law.(B) by referencing the water level in the pool.

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