Fluids Mechanics

Fluids Statics and Dynamics

Fluids Mechanics Principles

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You visit a store and see a beach ball floating above a fan as shown in the figure. You notice that when thebeach ball begins moving out of the air stream, it is pushed back toward the center of the stream. Explain why theballoon remains stable in the air
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.
The figure shows four cylinders of various diameters filled to different heights with water. A hole in the side ofeach cylinder is plugged by a cork. All cylinders are open at the top. The corks are removed. Which of thefollowing is the correct ranking of
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?
If objects that are denser than water sink, how can a steel ship float?
1.) A garden hose has an internal diameter of 0.85 cm and a nozzle with a 0.35 cm diameter. If 0.53 m3 of water flows through the hose, what is the speed of water through the hose and through the nozzle. 2.) A 1.5 m high tank is filled with water. A hole
You and a friend are taking a cruise when the ship begins to sink. The life rafts hold heavy containers ofsupplies. Your friend says, “We need to tie ropes to the containers, toss them overboard, and let them hangsubmerged below the raft. That will allow
A beaker of water sits on a balance. A metal block with a mass of 70 g is held suspended in the water by aspring scale in position 1, as shown in the figure. In this position, the reading on the balance is 1,260 g, and thespring scale reads 120 g. When th
The ratio of the diameters of the small piston to the large piston of a hydraulic lift is 1:10. Find (a) the ratio of the force on the small piston to the force on the large piston and (b) the ration of the pressure on the small piston to the pressure on
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.In a clear, coherent, paragraph-length response, explain why the lake water moves up the cylinder when thepist

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