Review Definition and 477 Threads

A review is an evaluation of a publication, service, or company such as a movie (a movie review), video game (video game review), musical composition (music review of a composition or recording), book (book review); a piece of hardware like a car, home appliance, or computer; or softwares such as business software, sales softwares; or an event or performance, such as a live music concert, play, musical theater show, dance show or art exhibition. In addition to a critical evaluation, the review's author may assign the work a rating to indicate its relative merit. More loosely, an author may review current events, trends, or items in the news. A compilation of reviews may itself be called a review. The New York Review of Books, for instance, is a collection of essays on literature, culture, and current affairs. National Review, founded by William F. Buckley Jr., is an influential conservative magazine, and Monthly Review is a long-running socialist periodical.

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  1. B

    Induced Current problem from review

    Homework Statement A 40 turn circular coil of a 4.0 cm radius and a total resistance of 0.20 Ω is placed in a uniform magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies with time as B = 50*sin(10π*t) mT where t is measured in s. What is...
  2. T

    A good quntum mechanics book to review before grad school

    Hi , I finished my undergrad major in physics this fall. I wish to apply to grad school for next fall, so I need some book review books on physics, I n my university we followed Griffith's intro to QM as textbook, I solved almost all the problems there upto chapt 7, but this seemed a more...
  3. A

    MHB How Do You Solve Advanced Calculus Review Questions?

    1. Find the horizontal asymptotes of the graph of the function g(x) = \frac{|f(x)|}{x-2} if f(x) satisfies inequality f(x+1) \le x \le f(x)+1 for every real x. 2. Let f: R->R be a function that is differentiable at zero and such that f(0) = 0. Show that for each n\in\mathbb{N} we have that...
  4. F

    Review Questions on Geometry 1: Where Did I Go Wrong?

    Hello, I have been doing a review test on Geometry 1 on Sparknotes (http://www.sparknotes.com/math/geometry1/review/quiz.html), however I came across two questions which I got incorrect answers for and which I found the provided solutions questionable. The first is Question 1 (attached). I...
  5. datafiend

    Pre calc review - interval notation

    Homework Statement What's the domain of 14/x2-x-6, in interval notation? Homework Equations \underline{14}x2-x-6 The Attempt at a Solution [3, + infinity) [-2,- infinity) Sorry, I can't find the infinity symbol Thx
  6. WannabeNewton

    Effectively reading physics review articles

    I have the rather fortunate task of reading to completion Eric Poisson's review article on point particle equations of motion in curved spacetime, http://relativity.livingreviews.org/Articles/lrr-2011-7/ . It's a rather long and very technical review. I've only ever read one review article in...
  7. C

    String Theory Review for Beginner Graduate Students

    Hi, I've been looking for a string theory review for a beginner graduate student. However, there is a vast number of reviews so it's easy to get lost. Does anyone know about a review article or any kind of material to begin with String Theory? Thanks.
  8. B

    Are These Chemical Reaction Review Answers Correct

    Homework Statement Im trying to solve these review questions but am second guessing my answers. http://puu.sh/aKk5W/9695c07739.png http://puu.sh/aKk6y/903fceeb2d.png http://puu.sh/aKkgV/74580ed488.png http://puu.sh/aKkKm/3c1e9d1544.png http://puu.sh/aKkN4/acf042c92b.png...
  9. B

    Calculating ECell of Anode-Half Cell? Chemistry Review

    Homework Statement The redox reaction of peroxydisulfate with iodide has been used for many years as part of the iodine clock reaction which introduces students to kinetics. If E°cell = 1.587 V and E° of the cathode half-cell is 0.536 V, what is E° of the anode half-cell? S2O82–(aq) + 2H+ +...
  10. R

    FE Review force balance Question

    I am working out of the 2010 lindeburg book which can be found here. The solution is in the book so I am actually looking for an explanation rather than a solutution. http://www.scribd.com/doc/113765067/FE-Review-Manual-Lindeburg-2010 this is chapter 10 pg 8 in the chapter, reviewing the...
  11. E

    Normal Distribution - self study / review

    Homework Statement My source textbook is the community college / junior college (confer: undergraduate-lower division) probability and statistics textbook: An Introduction to Mathematical Statistics and Its Applications, 2nd Edition Authors: Richard J. Larsen, Morris L. Marx 1986...
  12. E

    Self review: Statistics - Binomial Distribution

    Homework Statement The Binomial Distribution - already developed by Jacob Bernoulli (in 1713), et alii, before Abraham de Moivre (1667-1754 CE), et alii, developed the Normal Distribution as an approximation for it (id est, the Binomial Distribution) - gives the discrete probability...
  13. C

    Top Physics Review Book Recommendations for August Study - Updated Editions

    Hi, I'm going on a trip in August for a whole month and I would like to take this time to review some of what I have learned during my physics major. Do you have a book to recommend? Something like: https://www.amazon.com/gp/product/0486652270/?tag=pfamazon01-20 or...
  14. BiGyElLoWhAt

    A couple questions for linear algebra final review

    Homework Statement 2: Some proofs: a) If ##\{ v_1 , v_2...v_n \} ## are linearly independent in a real vector space, so are any subset of them. b) If any subset of vectors ##\{ v_1 , v_2...v_n \} ## in a real vector space are linearly dependent, then the whole set of vectors are linearly...
  15. kq6up

    What Free Algebra eBooks Are Available for Self-Teaching?

    I have a friend that wants to return to the local community college for a degree in chemistry. He is really rusty at math. Can anyone recommend a good free ebook for teaching oneself algebra. Solutions are a bonus, but answers are a must. Thanks, Chris Maness
  16. C

    Is there any good review articles on quark fragmentation model?

    I am planning to do some work on quark fragment into hadrons, and I have heard some models like Lund Model, feynman-field model and so on. Is there any good review articles on the topic of fragmentation model? (Recent years is better) Best Regards!
  17. dkotschessaa

    Schools Which Study Approach Should I Take for Grad School Math Prep?

    After 13 years of on and off schooling, I am (yay!) getting my B.A. in mathematics in... a couple of weeks. As most undergraduates I am intimidated at the prospect of graduate school and the pace of the work. When I talk to grad students I hear how bone-crushingly hard everything is, yadda...
  18. P

    Mechanical FE Exam Review and Sample Question Resources?

    I'm going to take the Mechanical FE Exam, does anyone have any suggestion regarding which review or question book/ resources may be more helpful to study? ( beside the NCEES Reference Handbook) Thank you in advance for sharing your experiences.
  19. G

    Precalculus Review: Texts & Materials

    Dear all, I am looking to refresh my memory as to some material at a precalculus level. At the moment I am traversing a course in single variable calculus but I feel some review would be useful. The following is a list of materials readily available to me so I would appreciate any guidance...
  20. P

    Anyone want to review the Relativity Lab that I made?

    Hey everyone, Recently I have been working on my teaching degree and doing field experience. Because relativity is part of the Georgia Science standards, I had to make a relativity lab. The experiment is actually measuring time dilation using GPS in the phones similar to Hafele–Keating...
  21. H

    Abstract Algebra: need a review of 1-1 and onto proof

    Homework Statement define a function f:H--> gHg^{-1} Homework Equations prove if f is 1-1 and onto.The Attempt at a Solution 1-1: f(h1)=f(h2) gh1g^{-1}=gh2g^{-1} h1=h2 (left and right cancellations) onto: f(g^{-1}hg)=gg^{-1}hgg^{-1}=h so every h belonging to H has an image of g^{-1}hg...
  22. M

    Looking for a thermodynamics review for graduate stat mech

    Hello, I've forgotten much of what I learned in my undergraduate thermal physics class. This is unfortunate, as my statistical mechanics class just builds on those concepts, especially the differential relationships between various state variables. I was wondering if someone could link me to...
  23. I

    Quick question in linear algebra review for quantum mechanics

    so in my book there is an example basically saying that linear transformations can be applied to basis vectors or, more specifically, i think they're using orthonormal basis vectors |e1>,|e2>, ... i'm just a little confused on how they're applying it to the basis vectors. my book...
  24. N

    MHB Math final review: counting problems

    Can somebody please give me a heads up on if I solved these two problems correctly, I appreciate it, thank you! d) In setting up a new department, a corporation executive must select a manager from among 4 applicant, 3 clerks from among 9 applicants, and 2 secretaries from among 7 applicants...
  25. D

    Impulse Problem review, check out help

    I think I almost got this problem would you review or correct me please?: A spring with a spring constant k=34/Nm is attached to a block of mass M1=1.5kg. Initially that block is at rest on a friction less surface. A second block, M2, of mass of 4.5kg is moving with speed v= 5.5m/s toward the...
  26. A

    Impact Factors/Peer Review in Physics Journals

    Hey everyone, I'm interested in people's opinions about Impact Factors and how useful they are in ranking scientific journals. For extra information I've made an infographic about the top physics journals as measured by Thomson Reuters in their journal citation reports and it's accessible here...
  27. P

    Please review a rate of decay problem for me

    Thank you for taking the time to read my thread. I do not agree with the TA's correction of my quiz and would appreciate if someone could give it a look before I approach him about it. Homework Statement Cobalt-60 has a half-life of 5.24 years. How long would it take for a 100 mg sample of...
  28. caffeinemachine

    MHB Proof Review. A Theorem in Spivak's Book.

    Hello MHB. I need your help to confirm that I have got the proof right of a very important theorem. Theorem 2-13 in Spivak's Calculus on Manifolds. Let $p\leq n$ and $f:\mathbb R^n\to\mathbb R^p$ be a continuously differentiable function in an open set $O$ of $\mathbb R^n$. Let $a$ be a...
  29. B

    Review My Valkyria Chronicles Fanart - #1 Isara Gunther, #2 Edelweiss

    Can somebody in this forum please review my fanart? Medium: Microsoft Paint Fanart Subject: Valkyria Chronicles Fanart #1: Corporal Isara Gunther http://imageshack.us/a/img15/2049/xrhv.png Fanart #2: Edelweiss http://imageshack.us/a/img845/6687/edelweiss.jpg
  30. ZapperZ

    Is the iPod functionality in iOS 7 too simplified and difficult to use?

    I seldom review new electronics and new OS, but this one got to me. Please note that I'm not a rabid fan of anything. I have Macs, Windows, Android phone, and Apple iPads. I use them all. But I did like the IoS interface, which I found very intuitive and very easy to see, especially with my...
  31. K

    Please review my ICE thermodynamic model

    I'm looking for some engineering types to have a play around with my thermodynamic model of an internal combustion engine and reply with any thoughts, errors they find, spurious results or anything else which doesn't seem quite right...
  32. O

    Calculus Review - Tangent of function and find y-intercept

    Homework Statement Consider g(ξ) = [(2H)/π] arctan(ξ). Plot a graph of the function g(ξ). Imagine a line that passes through the point on the curve at ξ0 = 1.30, and which is tangent to the curve at that point. Where does the tangent line intersect the vertical axis? [DATA: H = 2.00 ; ξ0 =...
  33. B

    Simple Complex Number Review Question

    Homework Statement z=1 + e^(iθ) calculate z^2 and lzl^2 Homework Equations The Attempt at a Solution for z^2 (1+e^(iθ))(1+e^(iθ)) = 1 + 2e^(iθ) + e^(i2θ).. is that the final answer? i expanded it into cosines and sines as well but that doesn't simplify anymore i don't...
  34. S

    MHB Review my solution: Trigonometry proof

    For a triangle with sides a, b, c and angle C, where the angle C subtends the side c, show that c \geqslant (a+b) \sin \left( \frac C2 \right) _______ Let us stipulate 0^\circ < C < 180^\circ and of course a,b,c > 0. Consequently, 0^\circ < \frac C2 \leqslant 90^\circ \implies 0 < \sin^2...
  35. S

    MHB Is this proof of x² - y² = 270 being unsolvable valid?

    Forum, I would love if you had a look at my proof below and gave me some feedback. Is the approach valid? Perhaps you have an alternative way to solve the problem? Anything helps! Problem: Prove that there exist no positive integers x and y such that x^2 -y^2 = 270. Proof: Given that x, y \in...
  36. T

    What Are the Best Resources for Refreshing Physics Knowledge Before Junior Year?

    I'm starting my junior year in physics after a year out of the system. What do you think are some of the best sources/books/etc for someone in my position? I have a little under two months of time available to me. I've been rereading my college textbooks cover to cover, and am wondering if...
  37. Redbelly98

    Entertaining review of digital storage oscilloscope

    I'm thinking of buying this nice DSO for under 1k $US for home use. It's the 70 MHz model in the Rigol DS2000 series. But that's not why I'm posting. I wanted to share these video reviews of the scope which are a real hoot -- provided you have spent a lot of your time using oscilloscopes...
  38. S

    Submitting on arXiv before Physical Review B

    Dear All, I wonder if there are any constraints about posting a paper draft on arXiv before the submission to PRB? If there is any legal constraints what are they? What other things which may affect the paper's publication? for example: Editors not feeling excited about the paper because it...
  39. A

    MHB I need to review modulus function

    Can anyone help me understand this questions from 800score.com ? I'm finding it hard to understand the modulus function Solve 14 - 9|x - 8| = 15 Kindly review this question and help me out on this as my exams are nearing. Thank You.
  40. FlexGunship

    Safety PLC Review Company Needed

    My company is looking to have our safety PLC code reviewed by an independent third party. The machine is a ~$1million piece of capital equipment, my company is based in New Hampshire, and we're using B&R. Can anyone point me to an independent reviewer?
  41. M

    Calculus III Review for University of Arkansas Math Majors

    I'm sure this question has been asked, but I'm unable to find where, but I was recently accepted to the University of Arkansas, majoring in Math and minoring in physics. I've taken Cal I-III already, but my course work is very sporadic, as I've changed majors once, and essentially taken two...
  42. C

    Why Are Laplace Transforms Challenging in Differential Equations?

    Hi all, I'm taking a systems modeling class and as such a portion of the class consists of a differential equations review, mostly centered around Laplace transforms and some functions I've never had to deal with before so I was hoping for a bit of help if you'd all be so obliged! I have quite a...
  43. S

    Literature Review- Aluminium Ring

    Hi there, I'm a university student and am stuck regarding a literature review for my individual project. I was given a schematic sketch of the setup of my experiment that showed a force acting on a hollow ring, and a strain gauges attached on the ring measured strain for the set force. I was...
  44. K

    Calculus I review for Calculus II

    I'm scheduled to take Calculus II this Fall semester, but it will have been over a year since I'd taken Calculus I. I am aware that I need to review, but what are some are the major concepts I should review to adequately prepare for the infamous Calc II?
  45. O

    Check if answers are right on my review? (vector eqns, curvature )

    Hi these are questions from my test review that i am unsure of, i posted question and my answer if you can tell me if I've gotten right answer that would be much appreciated! Let C be the curve with the equations x = 2 - t^3, y = 2t - 6, z = \ln(t) Find the point where C intersects the...
  46. V

    Review My High School Physics Textbook: Chapter 1

    Hi guys, I am writing a 400 page high school theory physics textbook, it will be 100 pages per chapter, I have completed the first chapter so is it possible for me to send it to someone to give me some feedback? :) Please =3 If you are interested in having a look at it comment here and I will...
  47. T

    Physics Test Review: Tips & Tricks for Solving Problems

    I have a physics test in a week and am having trouble coming up with the proper equations to solve the problems. Does anybody want to offer hint or guidelines to solving these? I have been working on these but I don't think I am approaching the questions appropriately. 1) A 920-kg sports car...
  48. M

    Engineering Having trouble with some review circuits using nodal analysis

    Having trouble with some review circuits using nodal analysis :( Homework Statement I'm trying to find node voltages for v1, v2, and v3. I = 3.1A Homework Equations V=IR The Attempt at a Solution My method of going about and solving this was fairly straight forward I thought...
  49. S

    Equilibrium question on review assignment, quick (I have a test tomorrow).

    Homework Statement A rod of negligible mass is supported by a hinge at the wall by a horizontal wire fastened at a 30 degree angle one-third of the way along the rod. A weight of 12 N hangs from the left end of the rod. a) Find the tension (T) in the horizontal wire. (T = 62.2 N) b) Find...
  50. J

    Review in Variable Differentiation

    Please see attached. I was looking for an explanation of the answer I have attached. Its been a little while and was just looking for the logic behind the differentiation shown for this problem. Its basically an optimization problem where I am looking for the minimum angle (theta) for the...
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