Parallel Definition and 1000 Threads

Hi all, This is an entirely new question, separate from the post I just asked. I am just learning about parallel universes, and am starting from scratch. Is there any information about how to go between parallel universes? What are the physical barriers from doing so? I know this is...

Hi all, What is the Hamiltonian or main equation, that if you solve it, parallel universes are predicted? For example, the Dirac equation, if solved, predicts the existence of anti-particles. If You solve Maxwell's Equations, you predict there should be E & M waves. Solving certain...

Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) PART A 3) Solve 2x^2 + 4x = 15 by using the quadratic formula. x = -1 +/- 2sqr34 4) Determine whether the given pairs of lines are parallel, perpendicular, or...

Hi again, I just need someone to confirm my answer. Thanks in advance. Find the impedance Z and power supply voltage E.

Any ideas on how one can make a small gap (~10-50nm) between two parallel plates and maintain a known distance between them. I have two very flat surfaces and I would like to maintain a small gap (known gap) across them. I searched in the literature but I came up with nothing so if you have any...

Homework Statement Prove that the equivalent resistance in a parallel circuit with 2 resistors with resistance R1 and R2 is always lesser than the resistance of either resistor. Homework Equations Rt= (R1 x R2)/(R1 + R2) The Attempt at a Solution I tried starting from R1 + R2...

I have seen power rails bypassed with parallel capacitors which are at least an order of magnitude apart in capacitance value. From what I understand, one capacitor filters high frequency noise and the other filters low frequency noise. 1. Which capacitor does what? The low value capacitor...

Homework Statement For the two parallel reactions ##A \stackrel{k_1}{\rightarrow} B## and ##A \stackrel{k_2}{\rightarrow} C##, show that the activation energy ##E'## for the disappearance of ##A## is given in terms of activation energies ##E_1## and ##E_2## for the two paths by...

Homework Statement Find the equation that contains the lines: 2x + 3y + 4z = 6, x - 2y + z = 3 and (2x - 1)/22 = (y + 2)/2 = (1 - z)/3 Homework Equations A plane (in point normal form) is defined by a point on the plane and a vector normal to it. In general, the form of A(x -...

Homework Statement I am trying to determine the charge on C2 which is a 3 μF cap in parallel with a 2 μF cap that are both in series with a 4 μF capacitor. The voltage source is 12V (diagram attached) Homework Equations Q=CV 1/Ceq= (1/C1)+(1/C23) The Attempt at a Solution...

I am in process of designing a homemade capacitance sensor and I'd like to have an approximation of the resulting capacitance of the following geometry. The plates are placed on the outer surface of a food grade plastic cylinder. The distance z between their edges is many times smaller than the...

Homework Statement The space between the plates of a parallel plate capacitor is completely filled with a conducting slab.What is the capacitance of the system ? Homework Equations The Attempt at a Solution The capacitance of a capacitor when a dielectric medium is placed...

Homework Statement Calculate the Y parameters of a capacitor in parallel (see the attached figure). Homework Equations Y-Parameters: I_1=Y_{11}V_1+Y_{12}V_2 I_2=Y_{21}V_1+Y_{22}V_2 Y_{11} = \frac{I_1}{V_1} when V_2=0 Y_{12} = \frac{I_1}{V_2} when V_1=0 Y_{21} = \frac{I_2}{V_1}...

I am confused how I would add certain resistors, like the ones in the attached picture (sorry it's a bad picture). If I add the first two resistors as if they were in parallel (as they are), couldn't I then add that equivalent resistance to resistor 3 as if they were in series, since the...

Homework Statement The question states True or False: Two lines parallel to a third line are parallel Homework Equations You need to know the difference between skew, parallel and perpendicular The Attempt at a Solution I thought of three parallel planes (which have an infinite...

Homework Statement Compute the equivalent capacitance for the network between points A and B.Homework Equations 1/(Ceq) = 1/C1 + 1/C2 + 1/C3... (series) Ceq = C1 + C2 + C3... (parallel) C1 = 6.9 nF C2 = 4.6 nF The Attempt at a Solution I have been getting stuck on a lot of these questions. A...

i know its not possible but isn't there any way in which two batteries of different capacities or voltages be connected in parallel ? Is there any way to limit the current in that case by using small value resistance to drop the current? or by adding a convertor from high to low current...

1. A proton with kinetic energy of 2.1 x 10-17 J is moving into a region of charged parallel plates. The proton will be stopped momentarily in what region (attached diagram)? a) Region K b) Region L c) Region N d) Region M Homework Equations \DeltaEk + \DeltaEp = 0 The Attempt at a Solution...

Homework Statement My car has rear defrosters that are made of 13 wires embedded into the rear window. They can melt a thin layer of ice, roughly 2.25*10^-2 kg worth, in two minutes. These wires are all in parallel and are connected to the 12V battery of my car. Each is about 1.25m long and...

For a high altitude balloon I need to power a radio that draws 1A but briefly peaks at 1.4A for a fraction of a second. <SEE EDIT> I was thinking of using two of these in parallel: http://australia.rs-online.com/web/p/switching-regulators/6727133/ Or one of the above item and one of these in...

Homework Statement The vectors a= <-4,3,3> and b = <2,-6,-5> are parallel to a plane PI and R is a point on with position vector <104,8,-6> . Find the Cartesian equation of the plane. What is the distance of the plane from the origin? Homework Equations The Attempt at a...

I have an enclosure that has numerous 18AWG cables running through it. These conductors carry 24VDC which power locking mechanisms throughout a building. The enclosure also has a 10AWG cable run to it carrying 120VAC. This is used to power the 24VDC power supply. The electrician wants to...

Homework Statement Find vL(0+) Homework Equations V=IRThe Attempt at a Solution I have an exam tomorrow and so I'm in a bit of a hurry so please excuse the horrible drawing. The problem I'm having with this question is a conceptual one. I've found vL in this this circuit by first finding...

Hello. For a while I use Centronics parallel port to enter digitized data in my very old computer (300 MHz). I use Win-2000 + UserPort in assembly language. Unfortunately my old computer is dead and I replaced it by a "new" one Compacq 733 MHz. Parallel port is in ECP mode, every thing works...

Homework Statement 6. Based on what you can tell so far, if you have an N number of capacitors (say at a nuclear fission site) and you need massive power storage, you would place the N number of capacitors in a. Series b. Parallel c. Combination of series and parallel d. Both choices a and b...

Homework Statement There's a DC supplying a current V over resistance R and inductor L in parallel. The circuit looks like this except it's DC http://sub.allaboutcircuits.com/images/02262.png I need to find the total current. The Attempt at a Solution I know that the current through the...

If you have an infinite non-conducting plate, the electric field just outside is equal to sigma / 2*epsilon. The electric field just outside a conductor is equal to sigma / epsilon. I understand both these results, but why is it than in the formula for the capacitance of a parallel plate...

Homework Statement In the attached circuit diagram, I have to find the Total resistance of the cicuit, the current at I1, the voltage over R6 and the current through I5. Homework Equations V = IR The Attempt at a Solution Rt = 12Ohms I1 = 1A R6 = 6v I5 = 1A Homework Statement

Homework Statement Calculate capacitance of a parallel plate but of made up o two media!? The parallel plate capacitor in the figure below is quarter-filled with mica (εr=6). Its remaining ¾ part is filled with air. The total area of the capacitor is 10 cm2 and the distance separating the...

Calculate capacitance of a parallel plate but of made up o two media!? The parallel plate capacitor in the figure below is quarter-filled with mica (εr=6). Its remaining ¾ part is filled with air. The total area of the capacitor is 10 cm2 and the distance separating the plates is 2mm. Find the...

Questions about parallel plate size... Hi everyone, new member here and I apologize in advance if my questions seem somewhat amateur. Recently I've started learning about capacitors, electrostatics and electric theory in general. I guess I'm having trouble trying to wrap my head around the...

Homework Statement For the circuit shown (in the attachment), find iL(0+) and Vc(0+). Homework Equations V=IR The Attempt at a Solution At t=0-; the inductor can be replaced by a short-circuit and the capacitor by an open circuit. This shorts out the resistor so by Ohm's law, the voltage...

Homework Statement I have a circuit with two resistors in series that are in parallel to another resistor. Each resistor is 5Ω. The total current running through the series is 4amps. I need to find the current in the single resistor that is in parallel. What is the relationship among these...

Homework Statement Suppose you have a capacitor with capacitance C charged to voltage V and a second capacitor with capacitance C charged to voltage 2V. The two capacitors are connected in parallel. What will be the voltage across the two capacitors after being connected in parallel?Homework...

This should be a simple question yet I am struggling to see the benefit of using one over the other. I was building an LED and LDR based sensor head for a line following robot, and I needed to choose a method of connecting 3 LED's inside of it. I figured that the 3 options are: 1) All in series...

I have gone over parabolas for a while in my Algebra II class and we are limited to just horizontal and vertical parabolas. I want to figure out how to graph a parabola that is titled at an angle. An equation that let's me graph a parabola whose axis of symmetry is let's say at 43° or 312.45° or...

Homework Statement The line x-2y+9=0 is tangent to the graph of y=f(x) at (3,6) and is also parallel to the line through (1,f(1)) and (5,f(5)). If f is differentiable on the closed interval [1,5] and f(1)=2, find f(5) A) 2 B) 3 C) 4 D) 5 E) None of these The correct answer is (C) 4The Attempt...

Homework Statement Homework Equations The Attempt at a Solution I found ω0 = 1/√LC when IR is at its maximum. (Purely resistive) I have a feeling that the last part requires an approximation and then an expansion which gives 2 values of ω. But the thing is, (1 + x)n ≈ 1 +...

Homework Statement The electrical model of an operating AC induction motor yields an impedance, Z, of 18.65+j15.106Ω . What value of parallel capacitance is necessary to achieve a power factor of unity if the operating frequency is 60Hz? Homework Equations V=IR w=2pif P=VI The...

Homework Statement Two Earth satellites are in parallel orbits with radii 6700 km and 6701 km. One day they pass each other, 1 km apart, along a line radially outward from the earth. How long will it be until they are again 1 km apart? Homework Equations s=r*θ The Attempt at a...

Homework Statement So I'm confused, if you have parallel plates: +++++++++++++++ ------------------- And there's an electron inside the plate: +++++++++++++++ e- ------------------- Does that mean the voltage of the negative terminal is higher than the positive terminal...

Homework Statement Homework Equations I=Bmr^2 Parallel axis theorem = Icm + MD^2 WET, KE, PE equations The Attempt at a Solution So far I've only done parts a and b and I wanted to post this up as soon as possible, I want to make sure if I'm on the right path so far. part...

Here is the question: Here is a link to the question: Calculus Parallel Resistors Question Help? - Yahoo! Answers I have posted a link there to this topic so the OP can find my response.

Homework Statement Describe by pointform how to find potential difference between parallel deflection plates, ΔV₂ = ? You don't have to solve. ΔV1 = 1.38 kV Δx = 5 cm Δy = 0.49 cm r = 5.2 cm q = 1.6 x 10^-19 C m = 9.11 x 10^-31 kg k = 9 x 10^9 Nm^2/C^2 Homework Equations ε = ΔV/d W = ΔEe =...

Homework Statement http://www.flickr.com/photos/84781786@N03/8687383259/in/photostream/ Homework Equations Vc=Vsource*Zeq/(200+Zeq) The Attempt at a Solution Is this the correct way to get Zeq 100Ω and inductor as series . so we 100+j100 parallel with the capacitor. which...

This past Monday I took an exam and got a 99, woot woot! But I can't seem to understand why I got the following question wrong: Complete the following statement: A simple series circuit contains a resistance R and an ideal battery. If a second resistor is connected in parallel with R, A) the...

The Universe divide in two parts The observable Universe which is everything we can see (93 Billion ly) and the whole Universe which is Infinity ! so the question is : if the universe is infinity so if we had repetitions they will be in this Universe because the universe haven't edge ,No...

Homework Statement I'm not sure how to put this in words, but I shall try. Alternatively, I've attached an image. It's hand-drawn, but I hope it's legible enough. Imagine a circuit drawn in the shape of a rectangle, with a single resistor ##R_1## on the top side, plus a DC cell...

Homework Statement If an ohmmeter is connected between points and in each of the circuits shown in the figure . For the circuit a) what will it read? For the circuit b) what will it read? http://s3.amazonaws.com/answer-board-image/b299a065-5dff-4564-82e0-d1db1c9c2c88.jpeg Homework...

Are there Parallel Universes ?