Review Definition and 459 Threads

Recently, I came across this review by Cosma Shalizi, a statistics professor at Carnegie Mellon (and who was trained as a physicist, with a PhD focusing on research in statistical mechanics and complex systems), of a book titled "A Call for Judgment" by Amar Bhide, a law professor at Tufts...

Any comments would be appreciated. Patent/Copyright Pending. :approve: Thanks ********************************SOP Follows************************** Statistics’ use in predicting and modeling are the most attractive to me. The ability to model phenomenon and...

Use residues toe evaluate the improper integral [FONT=Helvetica]Use residues toe evaluate the improper integral [FONT=Helvetica][FONT=serif][FONT=MathJax_Main][FONT=MathJax_Main] $$\int_{0}^{\infty} \dfrac{dx}{(x^2 +9)^3}.$$ [FONT=Helvetica]Explain all steps including convergence. No need to...

Hey I am looking for a book talking about history of mathematics Steven Krantz has one here Amazon Amazon.com: Customer Reviews: An Episodic History of Mathematics: Mathematical Culture through Problem Solving (Maa Textbook) (Mathematical Association of America Textbooks) who know this book...

My beloved TI-85 died. It had served me quite well for 16 years, and I still think it's one of the very best calculators TI ever put out. But after changing the button battery, for some reason it started to refuse to display anything, eventually reaching the point where it wouldn't even turn on...

Im kind of rusty on my calculus II and III and I was wondering if I should review it before I try to self teach myself basic real analysis? I have some experience with basic proofs.

Homework Statement Here's the question: A monochromatic point source of light radiates 25 W at a wavelength of 5000 angstroms. A plate of metal is placed 100 cm from the source. Atoms in the metal have a radius of 1 angstrom. Assume that the atom can continually absorb light. The work...

Does anyone know of a review article on astrophysical collapse to a black hole? There are several statements I've picked up from WP that either surprise me or that I'm not sure I understand. This Penrose diagram http://en.wikipedia.org/wiki/File:PENROSE2.PNG shows the singularity as being...

I need a review of solenoid equations, such as equations for bar solenoids, toroidal solenoids, and toroidal solenoids with an air gap within them. I think that somewhere along the line I may have learned something incorrect, so I would like to kill any douts that I have by ascertaining myself...

The problem is based off a passage. The passage along with the answer choices are uploaded. With a full carriage, the second ride suffers a power outage with the mechanical arm perpendicular to the horizontal. How much torque must the mechanical arm provide in order to prevent the...

There are several types of evidence for DM and Helsinki scientist Matts Roos provides a 39 page overview listing and summarizing each kind. It's a useful article. He gives graphic figures to illustrate each type of evidence. http://arxiv.org/abs/1208.3662 Astrophysical and cosmological probes...

Homework Statement solve for z: y^2+3yz-8z-4x=0Homework Equations The Attempt at a Solution I tried to alienate the z I got the answer: z=(y^2-4x)/(3y-8)

Hi. I'm not sure if this is the right place for this kind of question, but it's related to coursework. I took Calc III during senior year of high school and linear algebra during freshman first semester. Then, I haven't taken any math class because I tried to fill my prereqs out and also take...

I'm making the jump from math ed to pure math. I've done a bit more than the usual math-for-teachers stuff and my advisor is convinced I can pull it off, but if I sound nervous, this is why. I know what to review and study up on before fall semester for two of my classes but I'm at a loss...

After you have analyzed the existing material used by the company for their day-to-day duties, the current Access database, and the additional requirements that the current system does not meet, the following requirements entity/attributes have been compiled: Customer information is tracked...

I'm about to take introductory quantum mechanics next semester and was wondering what I should review from linear algebra? I took it 2 years ago

Question 2: -------------------- Homework Statement Consider the following sets, where U represents a universal set : U = {1, 2, 3, 4, ∅, {1}} A = {1, 3} B = {{1}, 1} C = {2 , 4} D = { ∅ , 1, 2 } Homework Equations A+D is the set : (Choose only one ) 1. {1, 3}...

Question 1 : -------------------- Homework Statement Consider the following sets, where U represents a universal set : U = {1, 2, 3, 4, ∅, {1}} A = {1, 3} B = {{1}, 1} C = {2 , 4} D = { ∅ , 1, 2 } Homework Equations Choose the correct option : D - B is the set ...

Please, can you check the following execution is correct? Problem text I have a plane in affine space in R^4 described by two following equations: \begin{Bmatrix}3x+y-z-q +1=0\\ -x-y+z+2q=0\end{Bmatrix} I have the coords of a point P: (0,1,1,0) Describe the locus of points Q such that...

Hi all, Recently I read an article called the "History of noise" by Leon Cohen, and liked it a lot. It's essentially of a review of the developments that have taken place in the study of Noise over the past century. I realized that review articles are a great way to get a bird's eye view of...

What is a good review paper on modern medical physics? Thanks

Homework Statement The figure below shows a plane electromagnetic sinusoidal wave propagating in the x direction. Suppose the wavelength is 56.0 m and the electric field vibrates in the xy plane with an amplitude of 20.0 V/m. (a) Calculate the frequency of the wave. (b) Calculate the magnetic...

I am a junior EE scheduled to take engineering electromagnetics in the Fall and want to know what math topics are the most useful to review. I know E&M involves quite a bit of vector analysis but I'm not sure how deep into it I should look. For anyone who has taken a similar course, can you...

1. While driving on the highway at a constant speed v0, significantly above the speed limit, you pass in front of a parked police car without noticing it. After a few seconds, during which time you have moved a distance d, the police car starts chasing you with a constant acceleration a0. Give...

1. Two cars, an Acura and a Bentley, are initially at rest a distance L from each other. At time t = 0 both cars starts accelerating toward each other, with constant acceleration Aa amd Ab respectively, until they crash into each other. a) At what time does the crash happen? b) Find the...

This is a question from an old test that I took this semester. My grader did not input anything, so I am left to trying to figure out by myself if my answers are correct or not. Question: The motion of an airplane leaving from miami can be described using a cartesian coordinate system with...

Homework Statement The space shuttle makes 1 revolution around the Earth in 1.5 hours when it is in an orbit 200 km above the Earth’s surface. The radius of the Earth Re is 6.5 × 10^6m. If the shuttle moves to a new orbit such that it makes 1 revolution per day (24 hours), what is the radius...

Hi everyone, I have a very general question about how to read a review book or paper? My tutor want to me read the book of deGennes and Tinkhan to start learning superconductor. Although I can unserstand the main features and even calculation,but i still can't "understand" BCS theory, I don't...

I'm going to be taking a class in ordinary differential equations over the summer and have about 2 weeks to prepare. The class has linear algebra as a prerequisite, and I just wanted to know what I would need to review from linear algebra to prepare myself for the course?

I'm currently an autodidactic mathematician/physicist and before I dive into my rusty calculus textbook to review I first want to be sure that I've filled in any holes in my algebra skills. I don't want to waste my time digging through entire algebra textbooks when I already understand the...

Hello Forum, Let us review about rocket move.The Rocket moving with 2 mechanical principe;Newton's 3 and conservation of momentum.If rocket at t=0 is in rest condition (E=0),after the gas with dm mass go out to the back from rocket ,then rocket move to the front(E=Ek1+Ek2). Nothing external...

Help with a review question please! Test tomorrow Can you please help with this review question. My test is tomorrow and I am not sure how to do this. Helium cation behaves like hydrogen atom. A particle with kinetic energy of 90.00 x 10^-12 erg collides with a gaseous helium cation in its...

Homework Statement 1. True or False: If the rank of a 9x10 matrix A is 5, then the kernel of A is 4-dimensionalHomework Equations The Attempt at a Solution 1. I was explained that it is true because the rank and nullity of A must be 10, but I don't understand why. I understand the dimension...

I'm nearing the end of my degree with only 3 required courses to take to finish my undergrad with a possible 1 extra class if I do my research with this one professor, who I really connect with. Anyway, this whole grad school process is completely new to me and is a process that I've never...

Hi, I'm looking for a QM mechanics book, which I could use for review and reference. I've took 3 QM courses, the first two was based on Cohen-tannoudji and Sakurai, and the third was about atoms and molecules etc. , although I haven't studied scattering theory and relativistic QM/QFT. (I took...

I answered all questions to what I know, and what I think, one I really didn't know the answer 1. The smallest unit of a chemical element that still has the properties of that element is a(n) A) amino acid. B) molecule. C) atom. D) bond. (C) 2. A proton has _______ charge...

Homework Statement A proton is moving with an initial velocity of 6.28x10^5 m/s straight towards a large conducting sphere of radius 85.2 cm. The sphere has a charge of 4.83 μC on it. Protons have a mass of 1.69x10^-27 kg. a) Determine how close the proton can come to the surface of the...

Homework Statement Three charges are placed along a meter stick. One charge, q1, is placed at the 12.1cm mark. A second charge, q2, is placed at the 27.2cm mark. The third charge, q3, is placed at the 48.5cm mark. Charge q1 is equal to +171μC. What must be the sign and magnitude of charge q3...

Homework Statement "A large block of mass m1 executes horizontal SHM as it slides across a friction-less surface under the action of a spring with spring constant k. A block of mass m2 rests upon m1. The coefficient of friction between the two blocks is \mu. Assume that m2 does not slip...

Homework Statement I'm trying to review basic probability; haven't looked at it in a couple of years. Am I on the right track here? A and B are independent random variables, uniform distribution on [0,1]. Find: E(min(A,B)) 2. The attempt at a solution...

Homework Statement I'm having some trouble remembering how to do this in a refresher course... sketch the intersection of (x^2)+(y^2)+(z^2)=3 and z<0 sketch the intersection of z=2(x^2)+2(y^2) and z=4-(x^2)-(y^2) Homework Equations The Attempt at a Solution I think the...

I'm looking for a good review of Waves before I go into E-Mag, acoustics and vibrations stuff. What would be a solid book for that? I feel like I didn't have a strong foundation in analysing trigonometric functions, and a very weak base using Fourier series, especially with applications...

Homework Statement Hydrogen gas is collected over water at 25°C. The atmospheric pressure in the room is 745 mm Hg and the volume of gas in the container is 43.5mL. The vapor pressure of water at 25°C is 23.8 mm Hg. Determine the volume the gas would occupy at STP. Homework Equations...

I sent a paper in for peer review to the journal "General Relativity and Gravitation" 30/10 2011. On 12/11 2011 they sent it out for peer review. Then 5/12 2011 they sent it out for peer review again, obviously one of the referees could not make up his mind or something so they sent it to a...

Homework Statement Block I of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N/m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been compressed a...

Does anybody know how good the masters degree in physics at Lund University is? Also what topics do they specialize in? I am considering to study there. Currently I am studying at the University of Technology in Vienna.

i'm about to enter calculus, and I'm worried I have a weak background in K-12 math. What are some good books I could review over my month-long winter break to get ready for calculus? I could study like 6+ hours a day and since the concepts in K-12 math are not overly complicated I think I...

The question is: let V1=(2,2,0), V2=(-1,2,1), V3-(1,1,4). There three vectors determine a parallelepiped. P draw it. (a) (this is the one that is giving me trouble) Determine the length of its main diagonal. (from origin to opposite vertex). I can't seem to figure out what it means from...

I'm doing well in my Calculus course, but I drive 15 minutes to get to class and back. I really think I should utilize this time. Can anyone recommend any lectures I can listen to while driving? I'm sure it can also really help get the concepts down. Anything would be helpful. Thank you in...

It is an old idea that, at least in principle, hidden variables could be local if they are superdeterministic. However, so far this idea seemed too speculative for highly respectable journals such as Physical Review Letters to publish research on it. But now it seems that it has changed. The...