Plate Definition and 960 Threads

We have a situation where we have air in front of the dry pigs and need to control the pig speed Medium is air, pressure is 17 barg upstream and 0.2 barg downstream and pig speed target is O.5 m/s for the pig in the 48" pipeline with a pressure of 17 barg. need to find the following...

The left plate of a parallel plate capacitor carries a positive charge Q, and the right plate carries a negative charge -Q. The magnitude of the electric field between the plates is 100 kV/m. The plates each have an area of 2 × 10-3 m2, and the spacing between the plates is 6 × 10-3 m. There is...

Hi all, I have a cantilever that is a plate (not a beam) with dimensions 2mm wide x 4mm long x 0.3mm thick. It is fixed only at one side, with the other 3 sides free. I want to be able to find the intrinsic stress on it after it is fabricated. To complicate matters, I also want to put...

Hello, I need some help in a matter. I don´t have any great knowledge in thermodynamics. If I have a plate of stainless steel (2mm thick). On one of the sides of the plate the temperature is 400C. I need to have a "simple" derivated calculation regarding how much the temperature is on...

Hi, I am trying to obtain a relation for calculating the deflection of a parabolic plate of thickness (say 't') clamped at one end, with a concentrated load along the center line at the "apex" end. Any direct links for the formula? Thanks!

hi.. This is abdul I am carrying a impact of sphere on a composite laminated plate. i wanted to calculate the contact force when sphere impacts the plate.. or can anyone help me how to get the stiffness of plate.. or deflections in plate.. with respect to time Thanking you Your help will...

Homework Statement A circular jet of water of radius r1 is propelled vertically downwards and hits a circular plate of radius r2 (> r1 ) so that the centre of the jet is incident onto the centre of the plate. The velocity of the jet as it hits the plate is v and is normal to the plate...

When did plate tectonics begin? The early Archean was essentially shallow seas, salty water early on from rifting, shield volcanoes (no sticky silicates, since no oxygen) etc. There were no deep oceans, no mountain building, no continents, since there was no plate tectonics. One could still have...

1. You have fabricated a parallel plate capacitor in your work shop, but the square metal plates end up not being exactly parallel to each other. They form an angle \alpha. The plates, size L, are held at constant electrical potentials, V1 and V2, corresponding to an electrical potential...

Suppose there is a plate with area A, on which jet of air with velocity 'v' is striking, then force on it will be = (density) * A* v^2 But if we go by basics i.e. F = d(mv)/dt = v d(m)/dt + m d(v)/ dt here i am not able to figure out that why the second term i.e. m d(v)/ dt is zero...

Shear stress of bolts Diameter of bolt Shear stress of plate Load carried Bearing stress of plate Bearing stress of bolts If someone could help me it would be fantastic Thanks

soo as the title says, i need formula for force acting on a plate that is moving trough fluid, in my case air... need it for rocket simulation because of its flat stabilizers... i thought like this: a flat plate is moving in any direction (yeah that complicates things... but keep it...

Homework Statement Two circular disks spaced 0.50 mm apart from a parallel-plate capacitor. Transferring 1.90 x 10^9 electrons from one disk to the other causes the electric field strength to be 1.90 x 10^5 N/C. What are the diameters of the disks (in cm)? Homework Equations E = Q /...

Hi! I've got a problem with this: Count moment of inertia for rectangular plate a x b, if you know that moment of inertia of thin rod is \frac{1}{12}ml^2 . Do not use integrals!, others mathematical functions required (I can proof this moment by integrals, but this is not issue). I know that...

Hello, I need some help (or a lot) of calculating where and how much the maximum stress is in a plate as seen in my attached figure. It´s a thin plate (1mm) that is designed as my picture and it has two forces acting in opposite direction. How do I calculate where the maximum stresses...

Find the inductance per unit length of parallel plate tx line width = w and space =d between the two plates. w>>d. My question is whether the total inductance is twice the calculate inductance because total inductance is the sum of inductance of the top and the bottom plate. But it seems all...

A multi plate clutch has 4 frictional surfaces, imternal diameter 120mm and external diameter 200mm. The coefficent of friction is 0.3 What spring force will be required to transmit 20KW of power at 1440 RPM if the clutch is under uniform pressure conditions?

Does anyone specialize in throttling oriface plate ? I want some information about that.can you guys recommend some books to me ?

Homework Statement [PLAIN]http://img846.imageshack.us/img846/1269/img029z.jpg 2. The attempt at a solution My attempt and relevant equation is only there in the picture. I know how to find the electric field of an infinite plane np, gaussian pillbox etc. im not sure what role...

Anyone understand "starved plate" designs? I'm trying to get a good understanding of "starved plate" designs used for some tube amplifier effects. I understand that they operate at very low voltages but what else is meant or implied by the starved plate? What is the theory of operation?

is this a valid proof? it seems very simple, and gives the correct result, but i can't find it in a book, so perhaps there's something fundamentally wrong with it? Given an infinite parallel plate capacitor, what is the force per charge on either plate in terms of the electric field, E...

See followup for clarification and simplification of the question. I have a challenging question about electromagnetics, vacuum energy. I'd appreciate any leads on clearing up any of my misunderstanding. I presume if two antennas were designed to broadcast the same signal, but were designed...

Homework Statement A parallel-plate capacitor is made from two aluminum-foil sheets, each 3.80cm wide and 15.0m long. Between the sheets is a mica strip of the same width and length that is 0.0225mm thick. What is the maximum charge that can be stored in this capacitor? (The dielectric...

Typical motions of one plate relative to another are 1 centimeter per year. At this rate, how long would it take for two continents 3,000 km apart to collide? I don't know where to start or what formula to use.

Homework Statement Ok so when you have a parallel place capacitor with a charge +Q on one plate and -Q on the other, you can use Q = CV etc., My question is: what happens when the two charges differ - i.e. one plate is Q1, the other is Q2. What is the capacitance, potential difference etc...

Homework Statement A parallel plate capacitor has a charge of 50pC area = 10mm^2 dielectric material permittivity = 2.5 distance between plates = 0.5 mm find the electric field the potential difference between the 2 plates the energy stored in the capacitor Homework Equations...

Homework Statement http://dl.dropbox.com/u/14443433/Screen%20shot%202011-02-25%20at%2011.02.23%20AM.PNG Homework Equations Q = C*V E-field = V/d F = E*q C = epsilon-naught*A/dThe Attempt at a Solution A. false based on F = E*q = Vq/d = C*V^2/d B. true based on the inverse...

Homework Statement A parallel plate capacitor has rectangular plates measuring 44.0 cm by 30.0 cm, and can be charged to 1600 V maximum ΔV without electrical breakdown. The gap between the plates is fulled with mylar dielectric (κ=3.2). Find the thickness of the dielectric.Homework Equations...

Homework Statement A 4.0-nF parallel plate capacitor with a sheet of Mylar (κ = 3.1) filling the space between the plates is charged to a potential difference of 120 V and is then disconnected. (The initial capacitance including the dielectric is 4.0 nF.) (i) How much work is required to...

Homework Statement how to find B field in parallel plate capacitor the plates have a length L and width w and separated a distance h Homework Equations B dl=\mu I The Attempt at a Solution I am trying to find the B files i thought u would use B dl=\mu I but the book has the...

I opened my harddisk and put a magnet on the plates but the plate acts like a piece of wood. I would expect the magnet to stick to the plate. It is a magnetic plate afterall! My "magnet" is in fact a row of neo cube balls which are quite strong magnets and small. So I would surely feel or see a...

Homework Statement A square metal plate 0.180m on each side is pivoted about an axis through point O at its center and perpendicular to the plate. Calculate the net torque about this axis due to the three forces shown in the figure if the magnitudes of the forces are F1 = 18.0 N, F2 = 17.0 N...

Homework Statement Explain the factors that determine the parallel and normal components of the elctric field near to the surface of a flat metal plate Homework Equations The Attempt at a Solution No idea what this question wants..? Is it something to do with the smoothness of...

I need help in designing a test plate for a leak rate test on a butterfly valve. The test must be performed in the field which complicates things. The engineer that is helping with this has come up with a plate that is 25" in diameter and 1 1/2" thick carbon steel. This is not rational...

how can it be proved that the otherside of the charged parallel plate capacitor has some charge on it

I want to confirm that the TEM wave is actually travel inside the dielectric between the two plates of the parallel plate transmission line. So even though surface current and surface charge appeared on the surface of the conductor plates as the consequence of the boundary conditions between the...

Homework Statement A thin horizontal 0.1m by 0.1m plate is charged with 10^10 electrons. If the electrons are uniformly distributed on the surface, what is the strength of the electric field 0.0001m above the center of the top of the surface of the plate? Homework Equations Eplane =...

Homework Statement A small plastic ball of mass 5.54 x 10-3 kg and charge +0.174C is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0o with respect to the vertical. The area...

I'm building a parallel-plate capacitor for a capacitance sensing circuit. If I let the capacitor fully charge, and then pulled the plates apart by 5 cm, how would that change the capacitance? Is there a formula to figure that out?

I have tried this set of questions which is from i-vii, I believe I am going wrong at a certain stage, as at question vi, the voltage is clearly wrong, below is the questions and my attempt. Sorry for the long post, any help on pointing out where I have gone wrong would be much appreciated...

Okaii this is my question : "A Twin Plate clutch has an outside diameter of 554mm and a width of 219.8mm. Tests of the clutch lining on stell, show that a block of 3Kg requires a force of 11.78N to move it. The spring force is 2.98kN. Calculate the torque this clutch can transmit" I no...

1. I am trying to come up with an explanation as to why the force on a plate as provided by a jet of air, does not vary with the distance from the plate. We set up in a lab a vertical pointing air jet giving a constant output and gradually increased the height of the plate above the jet whilst...

A parallel plate capacitor is defined of two circular plates with a radius of 12cm, it is separated by a dielectric sheet with a thickness of 2 microns (um) and relative permittivity of 6. It is charged with a potential difference of 110V. The area of one plate I found is A=pie*R^2 =...

Homework Statement A small object with a mass of 420 mg carries a charge of 30.0 nC and is suspended by a thread between the vertical plates of a parallel-plate capacitor. The plates are separated by 2.00 cm. If the thread makes an angle of 18.0° with the vertical, what is the potential...

Suppose that A is a positive constant. Find the center of mass of a thin plate covering the region bounded by y^2= 4Ax and the line x=A. Assume that mass density at (x,y) is proportional to x. y=sqrt(4Ax) K is what I am saying is proportional to x xbar=My/m ybar=MX/m Im not...

Hi Kind of a random question, I know, I just think this is a great place to get a answer. Anyway, I have a single cab pickup truck. So of course I have a very light back-end, to compensate for this in the winter for more traction I have been putting in a solid steel plate my Dad bought...

In my high school calculus-based electricity class two students and I are trying to create a demo where we set up a parallel plate capacitor and have some dielectric material inside it that we can pull out slightly, and have it oscillate into and out of the capacitor. Some ideas we have...

Hello If the resistivity rho and the dimensions are known, any schoolboy can calculate the end-to-end resistance of a strip of metal. But how do you do it if the strip is not regular as in the image?

hi.. cant set both site fit face face.. ( not meaning paralel) if make one side I mean plate much bigger.. and athor plate respectivel small (whic calculated area..) .. So what happens.. I think I could use small one while callculating Area.. ? 2. if I am not iright is there any mistake...

1. Two metal plates, 10 mm thick, are held a distance z=40 mm apart with a potential difference of 10 V across them. As you look at them the positive plate is on the left. In between the plates is a vacuum. Ignoring edge effects and assuming unit area for the plates, calculate both the charge...