Standard Definition and 1000 Threads

So basically I need to do a project on a topic in "beyond standard model" can anyone give me any theoretically interesting topics? I know this is a very loose question, but .. p.s I am a 3rd yr undergrad so nothing to crazy Only topics i can think of are just a standard search for a...

Homework Statement A high jumper knows from experience that she can clear a height of at least 1.78m once in 5 attempts. She also knows that she can clear a height of at least 1.65m on 7 out of 10 attempts. Find to 3 dp the mean and standard deviation of the heights the jumper can reach...

Homework Statement Carbon rods with a nominal diamter of 1.5cm, it is only acceptable within the limits of 1.495 to 1.505cm. the actual diamter normaly distributed with a mean of 1.501cm with standard deviation of 0.003cm. what will be the percentage of the rods which are rejected if 1-...

Hello, I know the hyperreals are not connected with respect to the interval opens (open sets are open intervals) In fact *R is totally disconnected. Is *R connected with respect to the S-open topology (open ball around x of radius r is ((x-r, x+r)) any point in this set has its halo in the set...

Hello, Happy holidays everyone, I'm trying to prove that any infinitessimal can be written as a monotone decreasing sequence; that is, one of its representations as a sequence of real numbers is a mon. dec. seq. I'm really stuck, and i don't even know if it's true. Intuitively, it should...

syllogism solving Is there a standard method for solving syllogisms? ie premise 1: socrates is a man premise 2: all men are mortal conclusion: therefore socrates is mortal While it is easy to see this is true, is there a formal approach to proving it? the set theory approach...

It is sometimes stated that new principles are required to solve the puzzle of quantizing gravity and harmonizing all interactions. Let me first list some known principles - quantization of classical theories; not really a principle, but a "program" - equivalence principle in GR - gauge...

Homework Statement For this whole question let T be a linear transformation from R^3 to R^3 with T(1,0,0) = (2,2,2), T(0,1,0) = (1,2,2), T(0,0,1) = (0,0,1). (a) Find the image of (1,1,2009) (b) Find the matrix of T with respect to the standard basis in R^3 Homework Equations Standard...

Homework Statement Let \vec{u}\neq 0 be a vector in \mathbb{R}^2 and let T:\mathbb{R}^2 \to \mathbb{R}^2 be described by T:\vec{v} \to proj_{\vec{u}}(\vec{v}) If \vec{u}=[1,-1] Find the standard matrix for T Homework Equations proj_{\vec{u}}(\vec{v})= \frac{\vec{v}\cdot\vec{u}...

Homework Statement i have a few results of measurements, with different measurement uncertainty: L=5\pm0,2, L=5,1\pm0,1,L=5,2\pm0,3,L=5,3\pm0,1,L=5,4\pm0,2 and how can i count standard deviation and final result of measurement with uncertainty? The Attempt at a Solution i counted arithmetic...

Hello all, I am trying to figure out the following question with no luck: I have a box of resistors, mean 100 ohms and SD of 20 ohms. I form a subgroup of these resistors with mean of 100 ohms and SD of 5 ohms. Find the standard deviation of the remaining sample. The question does not...

Hi everybody, I'm having difficulties sizing a compressor for natural gas. First,my assumption is to take natural gas as mixture of ideal gases.The compression must be between 9 and 32 bar and it starts at 45 °C. I know that volumetric flow rate must be 85000 Sm3 per day ,where I assume 15°C and...

Homework Statement Basically I need to find an equation that is relative to both B and B' T: R^2 --> R^3, T(x,y) = (x+y,x,y) B = {(1,-1),(0,1)} B' ={(1,1,0),(0,1,1),(1,0,1)} Homework Equations THE ONLY example from the book (Elementary Linear Algebra by Larson and Falvo) 6.3 Example 5 Let T...

Hello, I study in the 8th standard and am a fanatic about maths and physics. My knowledge in Math is upto Partial Differential Equations and I know physics upto Halliday-Resnick level. I don't know how to progress further. Could anybody please help ?

Let X and Y be the per dollar return of 2 stocks. Suppose that both have an expected return of 0.05, both have a variance of 0.0009 and covariance(X,Y)= -0.001. Suppose that you invest $50 in the stock with return X and $100 in the stock having return Y 1) Calculate the expected return of...

Is it possible to make an absolut standard Universe clock? I think it's not easy to make that knid of clock. The effects of gravity and velocity should be removed. If there were a point not moved and no gravity in the Universe, we could measure the time exactly. In the Earth, are we able to...

Can somebody explain to me why we have to square the variances when calculating the deviation and then finding the square root(whc is suppose to reverse the squaring) ,it doesn't make sense to me

Hi, I'm working on a continuous time random walk problem, but my question is to do with analysis. I have and infinite sum and am unsure how to get form one step to the next or whether it is just a standard result. The variables aren't important but it looks like sum from n=0 to inf of...

I have a question of testing of hypothesis about mean, the population S/d is not given rather it says "a client gave Quality Associates a sample of 800 observations taken during a time in which that client’s process was operating satisfactorily. The sample standard deviation for these data was...

hi friends can someone help me and explain for me what is the difference between a standard and metric?

Homework Statement Find the standard matrix of T(f(t)) = f(3t-2) from P2 to P2. Homework Equations n/a The Attempt at a Solution The overall question has to do with finding the determinants, so the matrix is provided; however, I want to know how the author came up with the...

what are the drawbacks to use the period of a pendulum as a time standard?

Homework Statement Find the Z value that corresponds to the given area. http://img163.imageshack.us/img163/3785/problem1v.jpg The Attempt at a Solution What I did was go to Table E and find the closest number to 0.0166 which was 0.0160, and the Z numbers were 0.04 and 0.0. I then added them up...

Hi all, I've done a regression and have the Standard Error of the X co-efficient (i.e. the slope). How do I change this figure to the standard deviation? Is the formula STD DEV = (STD ERROR)/(degrees of freedom)^0.5 Where degrees of freedom = N - number of X coefficients. ...

I really struggle to integrate this fraction expression: \int \frac{2}{4x^2+1}

#of nickels needed when only standard deviation is mentioned A previous study of nickels showed that the the standard deviation of the weight of nickels is 150 milligrams. A coin counter manufacturer wishes to find the 98% confidence interval for the average weight of a nickel. How many...

Does anyone know where I can find a full table that lists the frequency values for each fret on a standard tuned guitar G string? Or failing that can anyone suggest a method of calculating them accurately? I need to work out the change in tensions required to increase and decrease the frequency...

I have a 0-5V signal which I need to convert 4-20mA by using a Howland Current pump. I know that there are more steps to the whole process but I have misplaced all my notes that I originally had. Could someone please help?

I'm doing a lab report, but I don't need help for it. I just need the standard deviation in g. I need to compute the theoretical value for centripetal force together with its uncertainty for my circular motion experiment. That is, since my mass was measured to be 0.208536kg, standard...

Homework Statement The distribution of a drugs among addicts with autoimmune disorder is N(6.9, 16.81). What is the probability that one of these addicts enters your office and reports taking 16 drugs or more? The Attempt at a Solution z = (16-6.9)/4.1 = 2.21 P(z >16) = 0.014 from...

hello everyone, i have this (decreasing) nested sequence of open sets (intervals of infinitesimal radius) about 0. i just want to know if the intersection of the sets described above is still bounded away from 0. that is, is it true that the countable intersection of such balls with...

Prove that Cl(Q) = R in the standard topology I'm really stuck on this problem, seeing as we haven't covered limit points yet in the text and are not able to use them for this proof. Can anybody provide me with help needed for this proof? Many thanks.

Hello All, I am having to brush up on my stats for work and it's been a long time (>10yrs) since I've had to even think about this stuff. I could do with some help clarifying a specific point about standard errors and margin of error. An example I am looking at from my old notes is this: the...

Homework Statement Palladium(II) forms an intensely colored complex at pH3.5 with arsenazo III at 660 nm. A analyst is trying to analyze the palladium content in a meteorite. First 2.534g of the meteorite was digested in strong mineral acids. The resulting solution was then evaporated into...

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...

Is fcntl.h more fundamental than stdio.h? Using just stdio.h, I can define a FILE type, and use an fopen() command to open a file and return the address of the file into the FILE variable. Using fcntl.h, I use open() instead of fopen(), and instead of returning a FILE type, open() returns...

Homework Statement Convert the following as full (decimal) numbers with standard (base) SI units: 86.6 m The Attempt at a Solution I thought I could just change it to 8.66x10^1 then just add the 10^-3 because of the milli to make it 8.66x10^-2. But I'm wrong so could someone help me?

Given a http://en.wikipedia.org/wiki/Simplex#The_standard_simplex" in \mathbb{R}^n: \Omega = \left\{ {{\textbf{y}}:\,\,\,\,{y_i} \ge 0,\,\,\,\,1 = \sum\limits_{i = 1}^n {{y_i}} } \right\} where n is a positive integer, and a vector \textbf{a} with n elements a_i>1, I need to evaluate the...

Thoughts on this?

Homework Statement If z = 4 + i and w = -2 +2i, determine (z+w)5 using Pascal’s Triangle and standard form. Homework Equations The Attempt at a Solution

"standard" Square is not a Smooth Submanifold of R^2 Hi, everyone: I am trying to show the standard square in R^2, i.e., the figure made of the line segments joining the vertices {(0,0),(0,1),(1,0),(1,1)} is not a submanifold of R^2. Only idea I think would work here is using the...

I was looking at a textbook on Introductory Nuclear Physics, and I came across this book: The Standard Model and Beyond By Paul Langacker http://www.taylorandfrancis.com/books/details/9781420079067/ It seems relatively complete. Anybody read this? Any thoughts/comments? What are other...

Statistics. The bane of my existence... and then a bit of statistics "revision" rears its (in my opinion) ugly head in my quantum physics course and I have absolutely no idea what to do. Homework Statement 1. Suppose you measure the height of all students at the University. You use a ruler...

Perhaps if we focus on the common philosophy of the great physicists as to what physics is and ought be, expressed in their simple words reflecting infinite wisdom, we will be better prepared to advance physics beyond the standard model. Equations are more important to me, because politics...

Why can't we analytically continue our model of the Universe past the Big Bang in a way analogous to how the Euler sum is analytically continued into the zeta function? If this were possible, this extension would encompass a larger phenomenon but would reduce down to our Universe when certain...

gas flow rate has units of "sccm" that standard cubic centimeter per minute. what does "standard" means here? how is derived? if there is gas flow of 1 sccm then how much gas flows in cubic meters?

I do not think that the following was presented as a live video. http://indico.cern.ch/getFile.py/access?contribId=169&sessionId=51&resId=0&materialId=slides&confId=73513 Vanishing Dimensions and Planar Events at the LHC LANDSBERG, Greg 14:20 - 14:35 Room: Salle 242B At...

Homework Statement The scores of one class on the Unite 2 mathematics test are shown in the table below. Find the population standard deviation of these scores, to the nearest tenth. Unit 2 Mathematics Test Score - Number of people 96 - 1 92 - 2 84 - 5 80 - 3 76 - 6 72 - 3 68...

Hi, im trying to write my own version of the C standard function strspn. It returns the number of characters in str2 that exists in str1. I cannot get mine to work. #include <stdio.h> #include <stdlib.h> int strspn(const char *str1, const char *str2){ int n; const char...

Hi, I'm having a little trouble with this question: Among entering students at a certain college, the men averaged 650 on the Math SAT, and their SD was 125. The women averaged 600, but had the same SD of 125. There were 500 men in he class, and 500 women. Q) For the men and the women...