Figure Definition and 590 Threads

Dear Forum I would like to establish a workflow of how to include .eps graphics generated with gnuplot into Latex documents and it would be great if other could contribute to this. At the moment its like this. I plot some data with gnuplot and save it to a .eps file. However, the "white-space"...

Homework Statement Theorem: Given a metric space \left(X,d\right), the set of all limit points of a subset E\subset X, denoted E' is a closed set. I have an Analysis Exam tomorrow and have been studying for quite awhile and last week, my professor gave us a list of Theorems to know the proofs...

Hey Not done this in ages and just can't figure it out, i need to solve the equation; \frac{dv}{dt}=-\alpha v+\lambda F Where alpha,lambda and F are constants. I'm so used to solving differential equations numerically i think I have forgotten how to do it analytically:P My first attempt...

Homework Statement From a point P tangent drawn to ellipse \frac{x^2}{a^2}+\frac{y^2}{b^2}=1. If the chord of contact is normal to the ellipse, then find the locus of P. I think this is impossible.. Most probably i am drawing it wrong. that's why i am asking so please draw it so that i...

I have been working with Physics for a while. I have recently come across a problem I could not solve efficiently. I have been designing a sliding door with 4 wheels with a rolling co efficient of 0.03. I thought that if I simply be using Force applied by door on all 4 wheels multiplied by...

Here's a shorter article for your review. Any errors? ---- I was wondering, how did Albert Einstein figure this out? So I got an English translation of the original article, which is entitled "Does the Inertia of a Body Depend On It's Energy Content?" This article is only a page long...

I need your help to figure it out if the following thought experiment makes sense. Imagine two points in space at the same distance from Earth, 100 light years. At one point a previously unknown supernova explodes; we observe it’s bright light in the sky for several months, and after that it...

Involves physics but I have to program, can't figure out equation! Homework Statement Imagine an experiment performed on an infinitely long “billiards” table. This table is bounded at the far side and the near side, and these sides are a distance w apart. A ball (of diameter 0) is adjacent to...

I'm trying to figure out what the summation notation of (1-x1)^θ * (1-x2)^θ * ...(1-xn)^θ would be for summation I know I need to convert this to a summation notation in order to solve my problem, but I can't figure out how to convert it. Any help will be appreciated.

Homework Statement Evaluate this Limit lim┬(x→1)⁡= (√x-x2)/(1-√x) The Attempt at a Solution So What I did at first was obiviously sub'd in one and got "0"/0, undefined. So then I started to try and simplify the function by multiplying it by its conjugate, but I got some...

Homework Statement How Close to the edge of a 20kg table, can a 66kg person sit without tipping it over? The table is 2.2m long and there are two legs placed 0.5 m from each end of the table with 1.2 meters between the two legs and the top of the table is 0.80 m tall Homework Equations...

I need help help to figure out how each of those steps were achieved

I have been searching for formulas to determine the flow rate and velocity of air through an orifice at a given pressure differential. I need to know the flow rate to determine the CFM requirements of the compressor. And I need to determine the velocity to be able to accurately size the...

2, 120 gram bars of soap for $2 or... 2, 90 gram bars of soap for $1.50 Can someone explain the method to figure it out so I can properly compare grocery flyer deals in the future? thank you for any help!

http://www.trollscientist.com/226-two-plus-two-equals-5-troll-physics/ Please go to that site and explain why they are wrong! Thanks!

I have a tank (actually a PVC tube with an end cap) that has an interior diameter of 86 mm. It stands on its circular face. Coming out near the bottom of the tank at a right angle is a metal pipe 11 mm in diameter (interior) and 312 mm long (in total that is, note that some of the pipe is...

Is rainbow figure correct ?? Homework Statement It's a basic principle that why we see rainbow. I've described information in my attachment. That figure is given by my teacher, he says to find out mistake in it. My attempts I think angles on horizontal lines are incorrect, will...

I was at a conference earlier this week and one of the vegetarian dishes was this vegetable something bowl. It was a breaded looking bowl thing filled with what seemed like a cabbage or something and slices of peppers on top. This was all served on what appeared to be grits but tasted kinda like...

I want to find out the area of this portion of the figure, Here's the picture http://www.flickr.com/photos/64704061@N03/5980464069/ the curve is parabolic.

Homework Statement Find the equivalent resistance for the circuit in the figure. (Use the following as necessary: Vemf, R.) Homework Equations V=IR The Attempt at a Solution This problem isn't that hard, but I'm having trouble trying to visualize how to combine the resistors. The...

James came to a place where there was a bridge, supported by parabolic arcs. In the middle waving a transparent gelatinous substance in the form of spherical shell of exotic matter. He had come to " delighted well", a horizontal formation, which is much talk and little experienced. Slowly James...

Homework Statement Hi, I'm taking Intro to Computing for Engr. and my highest level math course I have taken is Calculus I. I'm trying to solve this problem in my book for Intro to Computing for Engr. and believe that the math is over my head. This may well be the case. But sense this...

[b]1. The problem statement, all variables and given/know 2300 grams of water is heated. If this water starts at a temperature of 17 degrees Celsius, what amount of heat is needed to boil away all of this water? Note that the specific heat of water is 1 calorie per gram per degree Celsius...

Homework Statement I have an equation with all known variables and I have the answer...I just can't figure out how they converted the variables and came about the answer. The first equation is N/V = [2*pi*(2.315)/h^3][2*m*kT]^3/2 we have the known variables h (plank's constant)=...

Homework Statement An elevator (mass 1020kg) is to be designed so that the maximum acceleration is 0.062 g. What is the maximum force the motor should exert on the supporting cable? Homework Equations F=MA The Attempt at a Solution (.062)(9.8 m/s^2) = .6076 m/s^2 F =...

Tunneling equation...have all the pieces, just can't figure out the calculation! Hi, I have an example from my book on Tunneling. All the parts of the equation are given, including the answer...put I keep comming up with the inccorect answer. Maybe someone can clarify how to calculate...

I'm having a little trouble figuring out the MatLab GUI stuff... I'm not used to the way MatLab does things. At this point all I'd like to do is combine an errobar() and a plot() in the same figure, how would I do this? Thanks!

Homework Statement Hi all :smile: The Attempt at a Solution #1 I can't understand what exactly oscillation is. I guessed a,b,c are correct but c is not the answer ... why? #2 No idea. #3 a, b ? #4 i guessed its c,d ... but again i was wrong #5 No idea, sorry :(

For my intro to physics class, we have to do a project known as Phylm, in which we analyze a scene from a movie that utilizes physics in some way and then determine, based on our findings, whether the situation is viable or not. I'm using the scene from V for Vendetta in which V throws a pair of...

Hi Physics forums. I saw this question in a book, I'm not asking for the answer and this is not a homework, I just don't know how to figure out this: What can you say about a solution of the equation "y' = -(y^2)"just by looking at the differential equation? I checked at the book's answer...

My tutor set me out to figure out how shadows are 3D. I'm 14 so I said they can't because shadows don't have depth. How is this possible? He said I won't fully understand until year 12. If you know anything please post, thanks!

Everything we witness and see is moving. All the things on this planet are spinning around at 25,000 miles a day while rotating around the sun while the sun pulls us on it's own course. Have we actually ever seen anything that was sitting still? As you approach the speed of light time slows...

Hi, I'm having difficulty trying to figure out the following question, I don't know how to even start it. Any help would be appreciated The question is, wave Pulse travel with the same speed down two wires made of different metals. The wires are stretched between the same two supports. If the...

Homework Statement struggling to understand how to solve this question and would be extrememly grateful if someone who understood offered me a hand: need to find the remainder of gogool divided by 1001. i.e 10^100mod1001. any assistance would be much welcomed as i have no hope figuring...

Check it out: http://imgur.com/EpYQv Where's the trick?

In the following figure, the space b/w the glass lenses is filled with water. We have to find the focal length of the system (radii of curvature, refractive indices given) http://203.196.176.41/VLEBT_RootRepository/Resources/6c32207c-7c5a-4462-b90c-89b0c196bc72.gif Now to calculate the...

Hi, I would like to ask a question on figure drawing. When communicating math/physics idea with other people, it is inevitable that formulas and figures are needed. For formulas we have TEX or Mathtype, but for drawing figures, is there very convenient tools that could quickly give...

Homework Statement I need to write a program (which passes by reference) to find the standard deviation of an array of numbers. Homework Equations http://en.wikipedia.org/wiki/Standard_deviation < the simple standard deviation formula is the one I am using. I've tested the program...

The system shown in the figure below consists of a mass M = 4.3-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m = 1.6-kg block. The pulley is a uniform disk of radius 8.0...

Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. In TMS, a small coil is placed on the scalp and a brief burst of current in the coil produces a rapidly changing magnetic field inside the brain. The induced emf can stimulate...

Trying to figure how fast you would be falling after 268 feet? not worrying about resistance and in terms of weight just and average person... this is what I did.. is it correct? or way off vf^2 = vi^2 + 2*a*d vf^2 = 0 + 2* 9.81 * 90 vf^2 = 1765.8m^2/s^2 take square root vf = 42 m/s...

Homework Statement Problem Homework EquationsArea of a semi-circle, area of a semi-sector of a circle, centroid of a semi-circle, centroid of a sector, general equation for centroid of a plate: (X-Bar) * \SigmaArea = \Sigma(x-bar * Area) The Attempt at a SolutionAttempt. I tried my...

Hi, I have a couple of problems I'm trying to figure out: 1) 1/x^3-x^2 dx Is this a partial fraction problem and if so am I doing it correctly? I think I should break down the denominator into x^2(x-1) then I have A/x^2 + B/(x-1) Then I get A= -3 and B = 1 so I figure it to be -3ln[x^2] +...

So on a different forum I go to someone said something about flipping a coin 1 million times, and that the probability of it landing on heads 800,000 times is small, but possible. I want to come of with some mindblowing way of telling them that no, it is not realistically possible. So what is...

Hi, Does anybody know the equations for the Lawson Klein bottle ? I am trying to construct it in a maths graphic application. Just to be precise its the version of the Klein bottle that is composed of two Sudanese Mobius bands, also it may be that the application will only cope with...

Homework Statement The lengths of the two perpendicular supporting rods are 80.0cm and 105.0 cm. The lengths of the two shorter sides are 50.0 cm and the lengths of the two longer sides are 85.0cm. The supporting rods are drawn with a bolded line in the figure. Homework Equations...

Hello physics enthusiasts! I was looking for resources, and stumbled upon these awesome forums. I am looking for how to solve the helmholtz equation / wave equation on a figure 8 type shape. I wanted to find the resonant frequencies of a classical guitar. Would this work? I am considering...

Homework Statement Hi! I am trying to figure out how to create a small square after a proof of some theorem or definition (normally all mathematical proofs are finished by adding a small sguare at the end of it) how do I fix it? It is normally placed on the right side.. Oh I found it...

Homework Statement the mother graph is y = 2 ^ x Homework Equations y=2 ^ x The Attempt at a Solution so i know the graph is flipped upsidedown and the whole graph is moved up 6 spots so i can get y = -2 ^ x + 6 however the solutuion is y =-2 ^2x +6. i can't seem to figure...

Homework Statement The sample is placed 0.12 m beneath a Geiger counter. The counter registers 2 counts per second. What is the activity of the sample?Homework Equations The Attempt at a Solution Just a guess. I am making up formulas here so please tell me if they're not even true. (2...