Hydrostatic Definition and 227 Threads

I have this homework problem and I can't figure it out: All I can figure out is the volume of the sphere =/ Help?

Hey guys I'm a year 12 student studying physics, and at the moment we are studying hydraulics. We learned that pressure varies with depth, which led me to this question. If I have two plates almost infinitely close together, each with a cross sectional area of A, would the total force on each...

Homework Statement Can someone explain to me what a hydrostatic system is? I cannot find a good definition. I saw the term at http://ocw.mit.edu/NR/rdonlyres/Physics/8-044Spring-2004/61D97187-F3E1-45AC-B549-EC16979B6FE8/0/lec11.pdf on slide 10. Actually please look at the slide and explain it...

Could anybody explain why in the hydrostatic test of a pressure vessel the allowed percentage of air in volume in the vessel is not allowed to be more than 0.5%-1%? What would happen if the pressure vessel contains 90% water and 10% air? Many thanks

Homework Statement An aquarium `8` m long, `4` m wide, and `4` m deep is full of water. Find the following: the hydrostatic force on one end of the aquarium. Homework Equations The Attempt at a Solution I already found the pressure and force on the bottom of the aquarium...now...

I am actually trying to solve a problem from fluid mechanics. The especifications of the problem are on the attachment. I can solve the problem easily by integration, but I'm not so sure if there is a vertical component of a force in the "dam" acting upward. There is a vertical component of...

[SOLVED] Hydrostatic Forces Any Help would be GREATLY appreciated. My grade depends on me understanding this. Homework Statement A tank contains freshwater. The end of a tank containing water is vertical and has the indicated shape. Explain how to approximate the hydrostatic force...

Hi everyone, Could you please tell me if the setup is correct? Homework Statement A circularswimming pool has a diameter of 24 feet, the sides are 5ft hight, and the depth of the water is 4 ft. How much work is required to pump all of the water out over the side? (Use the fact that water...

Homework Statement A rectangular barge floats in water, ρw. When it is empty it is immersed at depth D below the surface. Oil with density, ρo, is poured into the barge until it is about to sink. Find a relationship for the depth of the oil at this point in terms of the initial depth, D, the...

Homework Statement a) Determine the horizontal and vertical forces acting on a wall sloped at angle, θ, to the horizontal seafloor as a function of z. Assume that the water is h deep and that atmospheric pressure acts everywhere. b) Determine the total resulting force and center of pressure...

Homework Statement At a particular point in the Pacific Ocean, the density of sea water increases non-linearly with depth according to p = p_o + m*z^2 where p_o is the density at the surface, z is the depth below the surface, and m is a constant. Develop an algebraic equation for the...

My understanding is that the pressure below the surface of water is pgh. p - density of water, g - accel of gravity, h - dist below surface And that this relationship holds regardless of the shape of the container of water. (also, I'm neglecting the atmospheric pressure at the surface)...

Hi I am to calculate the hydrostatic pressure difference - given by the \Delta P = n*f/A where f = 0.4 kcal/mol/Å. The unit cell has the dimension 23Å x 19.9Å x 30.4 Å and the number of water molecules are 5.4 Å in the z-direction with a molar volume of 55.5 mol/l. I start by...

I have a quiz coming up that includes this, so thanks for any help. Homework Statement A trough is filled with a liquid of density 840 kg/m^3. The ends of the trough are equilateral triangles with sides 8 m long and vertex at the bottom. Find the hydrostatic force on one end of the trough...

Homework Statement The end of a tank containing water is vertical and has the indicated shape (in attached picture). Explain how to approximate the hydrostatic force against the end of the tank by a Riemann sum. Then express the force as an integral and evaluate it. Homework Equations...

Hi! I came over this paradox: an Erlenmeyer flask and a beaker are filled with water to the same height - it is assumed that they have the same base area and the same mass. Then the hydrostatic pressure of water is the same at the bottom of each container (since the depths are the same) and when...

hydrostatic pressure (basic, basic stuff) Homework Statement In Figure 14-31 (attatched), an open tube of length L = 1.8 m and cross-sectional area A = 4.6 cm2 is fixed to the top of a cylindrical barrel of diameter D = 1.2 m and height H = 1.8 m. The barrel and tube are filled with water...

A gate in an irrigation canal is in the form of a trapezoid 3 feet wide at the bottom, 5 feet wide at the top, with the height equal to 2 feet. It is placed vertically in the canal with the water extending to its top. For simplicity, take the density of water to be 60 lb/ft cubed. Find the...

Find the hydrostatic force on one side wall of the pool when it is full of water. how do i go about solving this? image is attached

An aquarium 5 ft long, 2 ft wide, and 3 ft deep is full of water. Find (a) the hydrostatic pressure on the bottom of the aquarium, (b) the hydrostatic force on the bottom, and (c) the hydrostatic force on one end of the aquarium. For (a) the hydrostatic pressure is P = \rho gd which is 187.5...

A question asks for me to show that the minimum pressure of a star is given by: P_{min}=\frac{GM^2}{8\pi R^4} where M and R are the mass and radius of the star. My answer goes like this: Gravitational force towards center = \frac{GM(r)\delta M(r)}{r^2} Pressure force outwards =...

[FONT="Courier New"] So, I've been given that archimedes principal for an atmospheric layer of gas on a planet is dP/dr = -rho*g where g is constant. For a vanderwaals gas, P = rhot*R*T - a*rho^2 I used the quadratic formula & solved for rho and put that into the dP/dr equation...

What are the forces acting on an air parcel in the vertical direction? What about geostophically in the horizontal direction? How can I sketch these forces? thanks

Could someone please explain me clearly this paradox, or could you tell me where to fnd more info about it? Thanks.

Please explain how I calc the hydrostatic force and it's location on the plate. Above the drawing is says: A 10m equlateral plate under water Assume 60 degrees F I clicked on 'Manage Attatchments' to upload the drawing. Give me a minute to do it another way if it won't show up...

Picture is included. You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that will be...

Someone please show me how to do these problem below...or at least show me the 1st few steps so I can get started. Thanks a lot. Plz help me out... 1)Find the force against the lower half of the rectangular floodgate 10ft wide and 8ft deep. 2)A conical tank 10ft deep and 8 ft across the top...