ميكانيكا الموائع

Fluids Statics and Dynamics

Fluids Statics and Dynamics

قوانين ميكانيكا الموائع
الفلاتر
المقالات في الفئة ميكانيكا الموائع
الاسم
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 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
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
The figure shows four cylinders of various diameters filled to different heights with the same fluid. A hole in theside of each cylinder is plugged by a stopper; all of the stoppers are identical. All of the cylinders are open at thetop.(A) Rank the press
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
Explain the physical mechanism by which water exerts pressure on the side walls of a glass in which it is contained. Make sure your answer addresses the microscopic scale of matter.
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.
Explain why objects with a density greater than that of water will sink. Prove your explanation with an equation.
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
If objects that are denser than water sink, how can a steel ship float?