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    Proper ethic to ask for explanation for grade?

    I just got back a grade for an independent study I did this past spring. I really wasn't expecting this grade (B+) since people get away with A's in reading independent study/independent reasearch/reading courses by doing a lot less work than I had done. I can think of a couple of places where I...
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    Electronics books which assume math?

    Can anyone recommend a book that introduces electronics from a somewhat practical perspective but still doesn't shy away from the underlying math and physics? I know Maxwell's equations and the associated mathematics etc so I would prefer a book that introduces both the theory in its full...
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    Research opportunities in Theory?

    So is anyone else having a hard time planning their summer in terms of research just because they're only interested in doing theory research over the summer (physics). I definitely am. So far the only option I've come across is a Professor who seems rather unwilling but has agreed that if I do...
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    Topology vs Analysis, which should be studied first?

    So I'm planning to delve into both of these subjects in some depth during the summer to prepare for undergrad analysis (using rudin) and a graduate differential topology class. My question is which one should I start out with and pay more attention to. I obviously need to study a lot of topology...
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    Interested only in theory/mathematical physics. What should I focus on?

    I'm a second year undergrad, currently majoring both in mathematics and physics. However I've decided that the time has come where I should stop taking both classes evenly and start devoting more of my time to one field. However I'm unsure which field that should be if I'm interested primarily...
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    Courses Getting a masters vs Simply taking Graduate courses as an undergrad

    With the amount of Graduate courses I currently plan on taking (I'm a second year undergrad), adding a couple of more will fulfill the requirements of an MA in Physics at my school. So if I plan things out properly and stick to the plan, I'd be able to get bachelor degrees in Math and Physics...
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    Schools GPA for top schools

    I'm an undergrad math/physics major and an aspiring theorist. I, like many others, would like to go to a top physics school for my post-grad education. I have a couple of questions about admissions to these schools. First, purely speaking in terms of GPA, below what GPA would these schools...
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    Griffiths vs Purcell vs Schwartz for undergrad E&M

    So I'll be taking undegrad E&M 1 next semester and was looking for a good book to prepare for it before the semester starts. People seem to like Griffiths and Purcell generally. Shwartz also seems to have some good reviews (and is quite cheap) on Amazon but I'm not quite sure what level it is...
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    Testing Looking for Practice Final exams and tips for Quantum/Classical Mechanics

    As finals are approaching, I'm looking for practice final exams from other universities which will allow me to test my knowledge and prepare for exams. So if anyone is willing to share/has links to a collection of practice tests of Quantum and Classical Mechanics at the undergraduate level, that...
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    Planning the year in terms of Research

    So I'm a second year Physics and Math major with the long term goal of a PhD in Theoretical Physics or maybe Math. I asked around at the start of this semester whether there was anything available for me in terms of research in the Physics department. I found a professor willing to take me on...
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    Need to learn Passage of Radiation/Particles through Matter

    Need to learn "Passage of Radiation/Particles through Matter" So I talked to a professor about a possible research project I could do with him and he gave me a book from where I am supposed to learn mainly two topics, namely "Passage of Radiation Through Matter" and "Semiconductor Detectors"...
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    Approach for learning Quantum Mechanics?

    So I've decided that I'm taking Quantum Mechanics this semester but I'm not sure what approach I should be taking towards learning it. Our class is using the standard Griffiths text but after reading the first chapter and a half, although I like his conversational style and think that it's an...
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    Subspace of a Vector Space over Complex Numbers Proof.

    Homework Statement Let V = C (complex numbers). Prove that the only C-subspaces of V are V itself and {0}. Homework Equations The Attempt at a Solution Well this problem has me confused since I have clearly found a complex subspace for example all the complex numbers of the form {a+ib ...
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    Programs What difference will dropping a Physics major make?

    I was strongly considering getting a BS in Physics along with a BA in Math until right now when I'm starting to consider dropping the Physics major. By "dropping" I don't mean leave Physics altogether but instead of getting a BS in it, I'll just be taking a lot of courses in it (such as quantum...
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    Quantum vs Analysis vs Lab

    So I'm still in the process of deciding my schedule for this semester. So far I know I'm taking: Introductory E&M Classical Mechanics (junior level) Advanced Linear Algebra Introductory Differential Geometry. I need a fifth course but can't decide which one to do this semester. I'm...
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    Programs Need advice on Possible Plan leading to a PhD in 7 years after HS

    This is a follow-up to some of the advice I was given at the thread I created called "Shortest Path to a PhD in Math or Theoretical Physics" and here it is for reference: https://www.physicsforums.com/showthread.php?t=521408 After looking around on the internet here is a path which I could...
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    Programs Shortest Path to a PhD in Math or Theoretical Physics?

    As of right now I'm a rising sophomore, math and physics double major. It's hard to say whether I'm gonna be pursuing a PhD in one of these disciplines or whether I'll be switching to something more employable later, as I haven't had many upper division classes. I do, however, strongly suspect...
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    Which math classes should I take if I want to do an REU next summer?

    Rising Math/Physics double major sophomore here. Math background: Calc I-III, Diff Eq and Elem Linear Algebra. Right now I'm leaning more towards Math or Theoretical Physics as something I'd like to do in graduate school but I want to focus more on the math for now. I was wondering which classes...
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    Knowledge required for a research project using Kelvin Probe

    Alright so a professor took me up for a research project which makes use of a Kelvin Probe. However I only have a year of introductory Physics under my belt (Mechanics and Waves & Oscillations). I started studying some of E&M which I assumed I needed to know, this summer but didn't get too far...
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    Research vs Home for the summer

    So I finish my first year as a Physics and Math double major in a couple of days. I was all set and excited for going back home for the summer [bought my plane ticket and everything (its Pakistan)] until I found out that a couple of my friends were staying back and doing research with a...
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    Should I be worried about A-?

    I'm a freshman, Physics and Math double major with a long term goal to enter a top notch graduate school in one of the fields. My question is should I be worried if I get a lot of A- grades instead of solid "A"s? I think that might be the case for me this semester. I probably got an A in Calc...
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    3 Math and 3 Physics Classes in the same semester?

    Hello all, I've been thinking about/planning my classes for my third semester at college. So far here are the ones I have in mind with their descriptions: Intro Physics III - Electricity and Magnetism: Electrostatics, circuits, electric and magnetic fields; electromagnetic waves. Classical...
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    Truly Learning Calculus

    Alright so I should start off by saying that I could be defined as the conventional "math whiz". That is, I have no problems at all doing complex algebra problems or complex and tedious integrals and derivatives where there is little concept involved. Let's just say that I've done really well on...
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    Courses How does this courseload sound?

    Next semester I plan to take the following courses: Calculus III: Studies functions of several variables including lines and planes in space, differentiation of functions of several variables, maxima and minima, multiple integration, line integrals, and volume. Ordinary Differential...
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    Programs Double Majoring in Math and ____?

    I am currently a first-year undergrad at University of Virginia. I know for certain that I wanna major in Mathematics. In high school I did a two-course series in Math which contained a lot of Calculus, some Linear Algrebra, some Differential Equations and some other general topics in Pure Math...
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    Matrix determinant problem

    Homework Statement The 4x4 matrix with rows v1, v2, v3 and v4 has a determinant of -5. What is the determinant of the matrix with rows v1, v2, 7v3+6v4, 6v3+8v4? Homework Equations The Attempt at a Solution I tried doing -5x7x8=-280 but its saying its wrong. I don't understand...
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    Matrices/Linear Algebra Proof

    Homework Statement Let A be an n x n matrix. Show that if A2=0 then I - A is non-singular and (I - A)-1= I + A Homework Equations The Attempt at a Solution Ok, so I started off with finding the general form of a 2x2 matrix which when squared gives a zero matrix, and all the...
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    Kinematics Question Involving Submarine

    Homework Statement A submarine can use sonar (sound traveling through water) to determine its distance from other objects. The time between the emission of a sound pulse (a “ping”) and the detection of its echo can be used to determine such distances. Alternatively, by measuring the time...
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    Volume of Revolution/Integration by Parts problem

    Homework Statement Find the volume of the solid generated by revolving the region in the first quadrant bounded by the coordinate axes, the curve y=e^x and the line x=ln13 about the line x=ln13. Homework Equations The Attempt at a Solution I'm not really sure as to how to do...
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    Circular Motion/Conservation of energy problem

    Homework Statement [PLAIN]http://img180.imageshack.us/img180/8643/mechanicsquestion.jpg [Broken] Homework Equations Conservation of Energy The Attempt at a Solution I cannot seem to understand the motion involved, especially because the string is inextensible. That means that while the...
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