Areas Definition and 243 Threads

I looked in my james stewart book and didn't find any thing helpful about that and google didn't give me any useful results so is it possible and how to?

Didnt know if this is the write palce to put this, but I am stuck on this assingment and i think it must have an easy solution so if someone could point me in the right direction then it would be much appreciated. Homework Statement Using an appropriate software package, quantify the...

Hey guys I just signed up, I would like to say that this is a great site. Firstly I am in 5th year. I am unaware of the US equivilant but I just have 5th and 6th year to complete before college. I am worried. I wish to do theoretical physics in university. I wish to get a doctorate and...

Hi, I am basically very interested in Physics,and right from when I was in school,I wanted to take up a career in Physics. However,due to certain reasons,I could not get admitted into a Physics major degree. In order to stay as close to main stream Physics as possible,I took up Mechanical...

I have to finish this one question that I have come across and I am having a bit of trouble figuring out where to go from what I havee done. The Q is: A copper cylinder is 5.82 +/- 0.06 cm long and has a radius of 2.53 +/- 0.04 cm. Using the appropraite formula, Question Details a) Find...

What are the hot areas in EE right now? By "hot", I mean the areas with the most job growth, the most prospect for development, the most needs and the most questions to be answered. (Analog devices? Digital design paradigms? Signal Processing? Meta-materials? Optical Networks...

Pop books on Optics, Condensed Matter, and all other non "sexy" areas of Physics There's so many pop books on Quantum Mechanics (Philosophical implications), General Relativity, and The Theory of Everything, but are there any pop books on subjects like Condensed Matter, Materials Science...

Homework Statement The problem is in the attachment along with my answer. Can please one check if I got a correct answer? Some sources say the answer is 2Pi instead of just Pi. Homework Equations The Attempt at a Solution

f(x)=\frac{-2}{z-1}+\frac{3}{z+2} our distance is from -2 till 1 we develop around 1 so our distances are 3 and zeo so our areas are 0<|z-1|<3 0<|z-1| 3>|z-1| but i was told to develop around 0<|z-1|<1 there is no such area ?

Homework Statement Find the area enclosed by the y axis, the line y = 3 and the curve x = y^2 Homework Equations [/b]3. The Attempt at a Solution [/b] Area = \int 3 to 0 y^2.dy = (1/3 y^3) 3 to 0 = (1/3 x 27) = 9 sq units...

Homework Statement Part 1: A forest in the shape of a 50km x 50 km square has firebreaks in rectangular strips 50km by 0.01 km. The trees between two fire breaks are called a stand of trees. All firebreaks in this forest are parallel to each other and to one edge of the forest, with the first...

I can't seem to get the correct answer. I rechecked my calculations but no luck. Any help is appreciated. Thanks. Homework Statement Find the area inside the larger loop and outside the smaller loop of the limacon below. r = sqrt(3)/2 + cos(theta) Homework Equations A = (integral...

Homework Statement Find the area of the region enclosed by one loop of the curve. r = sin(10θ) I can't seem to get the correct answer...I checked every step. I was not sure what to integrate from but the polar graph of sin(10θ) should be similar to polar graph of sin(2θ). From pi/2 to 0...

Hey asume i have conected up parallel plates but of different areas with a given potential difference ie battery, what hapens 2 the plates actualy i expect a uniform field, but how can we obtain that since we would require same potential on each plate! and secondly i expect both plates to...

Homework Statement Find the area under the cosine curve y=cosx from x=0 to x=b, where 0 is less than b is less than or equal to pi/2.Homework Equations \Sigmacos kx = [sin(1/2)(nx) cos(1/2)(n+1)x]/sin(1/2)xThe Attempt at a Solution I let n be a large integer and divided the interval [0,b] by n...

Homework Statement Consider the function f(x)=x2 on the interval [0,b]. Let n be a large positive integer equal to the number of rectangles that we will use to approximate the area under the curve f(x)=x2. If we divide the interval [0,b] by n equal subintervals by means of n-1 equally spaced...

I'm having a bit of trouble when it comes to volume of revolutions and areas. I find it quite difficult when it comes to setting up the integral. Could someone explain to me or give me a tutorial on how to set up the equations thanks! Here are a few examples The region enclosed by the...

y=sqrt(2x+1), 0≤x≤2 Find the area of the surface by using the second theorem of Pappus. S= 2pie(row)L I cannot find what the centroid is, i have length as 2

I would like to ask where the greatest density of mass per area could be in the universe. I don't mean like "next to a black hole" but as in a highly densely populated area of space. I would naturally think it would have to be in a supercluster of galaxies, as compared to a void. Now within a...

proof that the "n" brillouin zones are of equal areas? i'm trying to find a way to prove that the brillouin zones are indeed of equal areas. if i draw, for examle, the first 3 or 4 brillouin zones of a cubic 2-dimensional lattice, then it is relatively easy to show geometrically how the parts...

find the exact area between y=ex, y=2, and the y axis im not looking for a solution, just hints on how to get started. would i just go ahead and integrate the function from 0 to 2 or would i solve the function for x and then integrate or are those 2 idea just completely wrong? thanks

I'm a rather bemused American high school student who needs advice on choosing a college major. The future is starting to seem very close, and I'd like your help in condensing all of my interests into one field. If it's relevant, I'm looking at colleges such as UT-Austin, UMichigan, Cornell...

Books for self-study in "pure areas" of mathematics Hi, I am starting an applied mathematics course this year at university. Unfortunately I don't have the option to study "pure" areas of mathematics, but I would like to learn more about them to become a more complete mathematician at the end...

Pure maths is obviously abstract compared to the applied areas but which areas of pure maths are considered not as abstract or relatively less abstract?

\sum_{n=-\infty}^{\infty}r^{|n|}e^{inx}=\sum_{n=1}^{\infty}e^{inx}+ r^{0}e^{0} +\sum_{n=-\infty}^{\infty}r^{n}e^{-inx} if we look at the left side i have been told that it was broken by intervals the left most is for n=1.. infinity the central is for n=0 the right most for n=-1 ..-infinity i...

This is my best guess, would this be correct? Electrical engineering is about physics and electronic circuits mostly, and quite a bit of math, and a little chemistry, a small amount of that. Does electrical engineering involve anything else?

http://home.cc.umanitoba.ca/~loly/102-dec_word.pdf The above is a link to the problem - Question #3. Homework Statement A glass tube has several different cross-sectional areas with the values indicated in the figure. A piston at the left end of the tube exerts pressure so that the mercury...

Hi, This is my first post but I've perused the forums often enough before (usually while I should be studying instead!). I'm 26 and in my second year of a 4 year Electrical Engineering degree (late starter). I am currently intrigued by radar and how to engineer machines to detect and track an...

Homework Statement Four vectors are erected perpendicular to the four faces of a general tetrahedron. Each vector is pointing outwards and has a length equal to the area of the face. Show that the sum of these four vectors is zero. Homework Equations The Attempt at a Solution Let A, B and C...

Hey all, so I'm a second year mechanical engineering undergrad and I've been starting to really look into what my career options are. I've always imagined myself working in the spaceflight/aeronautics industry and have made this somewhat of a goal of mine throughout university, however, I'm not...

can anyone give derivations for formulas for finding volume,curved surface areas,total surface areas..of a frustrum...based on similarities of triangles... And anyone belonging to gurudatta coaching centre please add me to skype adikap5735

Deciding between 2 senior project areas -- switching from EE to physics Hi, I'm a final year EE undergrad who has taken senior level physics courses on quantum mechanics, electrodynamics, relativity and quantum field theory (next semester). I'm considering a switch to physics, and I'm...

Hi, I'm Ben. I was wondering if there are any practical, profitable areas where studying Artificial Intelligence would be appropriate. From what I've heard, AI is mainly grounded in theoretical computer science, which is the most interesting aspect of it. But in regards to what is in demand...

When I was a graduate student in experimental high-energy particle physics c. 1980, none of the people I worked with (fellow experimentalists and theorists alike, in that field) used relativistic mass m = \frac {m_0} {\sqrt {1 - v^2 / c^2}} in their work, to the best of my memory. The only...

Hello physics people. I love looking at the ICM program (http://www.mathunion.org/activities/icm/icm-2010-program-structure/) because I think it's the best classification system for mathematics out there. There are pretty much all the popular research topics listed and it is hard to argue...

hi, I am an undergrad and intend to pursue higher studies in physics. I wanted to know what are the current frontier areas of research in physics, those that will be alive for atleast 10-20 yrs fromm now on??

I have a function: y=e^x the tangent line at the point (1,e) would be x*e? in order to find the area between the tangent line, the y-axis and y=e^x i equate these functions and solve for x? I got this far (e^x)/(x)=e how do i solve for x

Hello! I want to know the deflection at certain points in a solid body with different cross sectional areas. A force (F) is applied at one of the different sections. I want to know the deflection where the force is applied and what the deflection is on the other parts of the body. Im going...

Employment areas with PhD in Pure Maths?? I am currently filling out my graduate school applications for PhD in Algebraic topology and there are a lot of questions asking about my career goals. So I was wondering what are the employment opportunities for a person with PhD in Algebraic...

Homework Statement There are two circles of equal radii. I have to prove that the mid point of the line joining their centres is the [SIZE="4"][FONT="Arial Black"]only point through which if several arbitrary lines are drawn, equal areas enclosed by the circles will fall on either side of the...

I know its a really dumb question and if i reached this far in math i should know but..how do you draw the diagrams for this topic? Like they give you a region in a plane defined by some kind of inequalities such as (x-2y^2 greater than or equal to 0), (1-x- IyI greater than or equal to 0) and...

For example, I have a floating disk,and there are four propulsors, the propulsors of this disk could generate unlimited opposing force (to the gravity). Let's say this disk weighs 100 grams and I want to find out the gravitational pull on this object and the opposing force required, how do I do...

Any areas in maths that's hand wavy? Is so where?

As I mentioned in another post I'm trying to keep up with my math class and since I didn't finish high school there's some things I have to learn on my own. Heres a few things that I didn't figure out in the class. This is in chronological order, things are gradually getting more complex so I'd...

What are fields of research in maths that contain a large number of tricks? What are fields that contain the least number? By not containing many tricks, I mean fields where each step can be deduced in a logical manner without huge jumps. Tricks will mean the opposite.

I have three questions: Homework Statement Find the areas of the regions whose boundaries are given. Homework Equations y=x^3-3 y=1 The Attempt at a Solution x=-2, x=2 I got -10.67 but I know this can't be true because you can't have a negative area. Homework Statement Find the areas of...

People in very isolated rural areas don't need a line connected to a utility company or outside power source to get water or gas. I know that they can get water from a well. I know that they can buy giant tanks to hold propane or any gas that they use to power their appliances and have the gas...

I know that people in rural areas can't get gas to power their gas stoves and furnaces (to warm their houses) from the utility companies. The gas must be put in portable containers and transferred to the houses. I often see propane gas tanks for sale at grocery stores and Wal-Marts, etc...

I'm a homeless transient. One constant I've noticed is that around the downtown area in all medium sized ( population 100,000 + ) cities or larger, there are large groups of teenagers that hang around at night, goofing off and shooting the bull for hours. Don't they have any work to do? Don't...

Given a circle radius 1 how do you divide it into pieces of equal area using parallel lines? Maybe find the area under f(x) = \sqrt{1-x^{2}} OK \int f(x)dx = \frac{1}{2} \left( x\sqrt{1-x^2} - \sin^{-1} (x) \right) Well how do you find the location for the cuts if you need to divide the...