Class Definition and 909 Threads

Arg, I just started in on 'real physics' and am taking mechanics this semester but the problem is I don't understand it. Our damn physics department recently transitioned to a new more interactive program, which to them means tossing out the textbook and giving us conceptual videos to watch...

Should I challenge my class with interesting puzzles, or drone on and crank out answers to standard problems? Any tips?

I'm applying for graduate schools (3 of them) and obviously I need to send my undergrad transcripts. But they do say all post secondary education. I took dual credit classes in High School that I got Longview community college credit and UMKC credit for. Do I need to list this these colleges in...

What to expect from my class "Theoretical Physics 1"? I'm starting my major in physics this fall and I'm taking multivariable calculus, mechanics, E & M, and theoretical physics 1. I pretty much know what to expect from the other 3. But I'm going into this class "theoretical physics"...

To those familiar with university structure, mine offers two different statistics courses (besides those that are offered to fields like soc. or bio. which are not open to non majors). One is offered by the statistics department, one by the math department. Is there a generalized difference...

1. This problem concerns a nonhomogeneous second order linear ODE L[y] = g(t). Suppose that: y1(t) satisfies the ODE with the initial conditions y(0)=1, y'(0) = 0, y2(t) satisfies the ODE with the initial conditions y(0)=0, y'(0) = 1, and y3(t) satisfies the ODE with the initial conditions...

Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I...

Homework Statement y''+16y=9xe^(4x) y(0)=0 y'(0)=0 find the solution, y(x) to the differential equation The Attempt at a Solution I found the particular solution to the right side of the equation, which is correct, yp= .28125x-.0703125e^(4x) For the left hand side of the...

I graduated from school two years ago and I am planning on taking a course on electrodynamics this coming semester for personal interest. However, I am having problems registering for the class. I haven't strictly met the course's prerequisites. I meet the math side of things, but the course...

i have been on these last few problems since thursday of last week and I am still lost can someone help me with one through 5 1.Shareen finds that when she drives her motorboat upstream she can travel with a speed of only 8 m/s, while she moves with a speed of 12 m/s when she heads...

I am seeking the answer to the following question: Given a simple closed curve on a compact Riemannian surface(a compact surface with a Riemannian metric), whether there exists, in the homology class of this simple closed curve, a (single) closed curve which has the shortest length measured with...

Once again, this stupid university is frustrating me beyond all end. First, I had a death in the family and missed two crucial weeks of a class. They make exceptions for family deaths and I retook the class, but then they decided to make me submit 'proof' that someone who was like a parent to me...

Hello, I am a senior now. I have a B+ in one of my upper division physics classes. How can I still get into a good graduate program ? Its freaking me out.

Homework Statement Prove that if (a1, b1) ~ (a2, b2) and (c1, d1) ~ (c2, d2), then (a1, b1) + (c1, d1) ~ (a2, b2) + (c2, d2) and (a1, b1) \bullet (c1, d1) ~ (a2, b2)\bullet (c2, d2). Let [a, b] denote the equivalence class with respect to ~ of (a, b) in Z x (Z-{0}), and define Q to be the...

With the economy in the dumps, a lot of grad schools this year seemed to be taking significantly smaller than normal incoming class sizes (at least in math, where I was applying; for instance, I was told the University of Minnesota was taking on only 30% of their normal amount of incoming math...

so I failed cal 1 at my CC mostly because of personal problems going on in my life, but I am retaking the class and getting a solid A at the moment. I got into UCSC without sending in a transcript but will have to since i plan on attending. Will they withdraw their acceptance because of the...

Hello everyone, I am having a considerable amount of trouble in my high school geometry class... first let me explain. My teacher went on sabbatical last year and decided to make his own text. His text is alright, but lacks some explanation I feel, I need to SEE it done well before I can...

So hopefully next semester i'll start my TAship and I'm faced with the question that has probably faced every TA before me. Do i wear a toga school from now on? Maybe at least to the first week of lab or first day? Studies1 have shown that lecturer's wearing togas and other ancient clothing...

I want to take a statistical physics class next semester which requires that I take ODE first, and recommends that I have taken linear algebra as well. Since I will not be able to take ODE until 2 semesters from now, due to the physics-major version only being offered in the spring (i...

how can I calculate the distance something is above the earth? as an example a 1750 kg satellite orbits the earth. it has a gravitational potential energy of 1.69*10^10 J. Its free fall accel is 6.44 m/s^2 how high is it. How would I solve this? thanks.

I need the equation for Newtons to Joules. as an example the question is you must exert a force of 4.5 N on a book to slide it across the table, if you do 2.7 J of work in the process, how far have you moved the book. I am not looking for an answer just an equation to show how to do this, thanks

I'm a senior engineering major. I'm currently taking my general education requirements, particularly a theater class at the 200 level. Is it bad if I do a pass/fail grade instead of an actual letter grade? Would the graduate committee (for whichever school I apply to) even notice/care? I have...

Hi, everyone: I wonder if anyone knows the actual definition of having a surface represent a homology class. Sorry to bother with just a definition, but I have not been able to find one , neither in books nor online. I am reading that a certain surface represents H_2(M,Z) ...

hi, this is what I've got so far and what I'm wanting to do is add a char to the end(and eventually the beginning) of the string but i can't seem to get it to work, do you think I've got the right idea #include "string.h" #include <iostream> using namespace std; using namespace PC3762...

I am majoring in physics at school, and I am finally starting Physics 131 (classical calc-based physics) next semester. I am just finishing up my Calculus courses this summer. I would like to find a good book that I can read to get me started so I can have the best chances of doing well in...

i was wondering whether it was possible to have a class say Vec4(i,j,,k,n) and then being able to assign it as an int eg/ Vec4 A(i,j,k,1) = 1; does this make any sense?

I'm not going to blame anyone except for the fact that I'm probably a slow learner. Can somebody explain some of the things I'm learning in layman terms? That way I can have some context when I'm reading about them. Right now, the things I'm reading have no meaning, so it's really hard to...

I'm a physics major and I have the option next semester to take thermodynamics in either the chemistry department or the engineering one. The chem thermo class is taken also by chem and chembio majors and the engineering one is taken by civil, naval, environmental, electrical, and computer...

i'm currently a physics and applied math double major, looking at mechanical/aerospace engineering after graduation (i'm in my 4th yr but will stay for 5th) i'm taking my 1st engineering class ever this semester, which is Feedback and controls since i heard it would be a good class for me to...

Just started a Linear Algebra type math class this semester, and for some reason it has a 2 hour discussion class once a week. So far we have only meet 4 times so far, and i hated going to them since the 2nd meeting The TA goes over the same examples that the professor gives during lecture, and...

http://img16.imageshack.us/img16/7028/tempqk8.png This is the second time I'm posting this; last time I was told that it was not explicit. The image consists of 3 masses, m1, m2 and m3, out of which m1 and m3 lies at rest while m2 is in motion in the direction of the arrow. When m2...

I read the textbook 5 times now and I can't seem to figure out what the equivalence class suppose to be and how to find it, and i don't understand quotient set either (more importantly how to find it). I'm not familiar with any Equivalences at all if anyone can help me with it that would be...

I'm not trying to ruffle anyone's feathers here, but I keep hearing that Engineering majors don't actually learn where anything comes from (plug and chug) as opposed to a Physics major which learns derivations and history. I'm still torn between EE or Physics and a Freshman, so my knowledge...

We have a seesaw arrangement, a mass m3 supports the fulcrum, we have mass m2 on one end, and a mass m1 fall on the other end with velocity v. Considering the distance between the fulcrum and m1 is d and that of m2 is r, what will be the momentum distribution?

The need of having done a class "formally" I'm (something like) a master student in Europe, now being in my first year and I have the following problem: Last semester I was attending lectures on QFT, but I haven't done the exam/assignments, since it was way too much for me that semester and...

For my transition into advanced mathematics class, the teacher's-assistant we got for my lab section keeps giving us the answers to the harder proofs that we get as assignments each week. He is clearly not supposed to, in fact today he said something along the lines of "I hope nobody here is...

Hi Guys, Can anybody advise me where to get chart for tolerance class of 11e28 and 10e28 for the plastic Gears?

I have signed up for a bunch of science classes this semester. One of which is university physics. It is math heavy and geared toward the math/engineering/science major folks. The problem: I haven't taken any math class in over 10 years, and I have no trig or calc experience. Will this...

I'm currently a freshman at UIUC and a physics major. I've asked for a lot of advice on these forums and elsewhere and I think I may want to consider a double degree in some sort of engineering and physics. I have all my general education requirements done (thanks to a lot of AP credits) so all...

I am a physics major at a school with a limited program and no astronomy of astrophysics options. However, my goal is to go to Grad school for a cosmology/astrophysics. I would bet I know most of what is covered in the one astronomy related course my school offers, which is basically a survey...

I have two documents: a letter and an article and I want them to be in the same .pdf doc, only, they're two different document classes. Is there a way to combine them under one document, or something like that?

Homework Statement The Bloch-Gruneissen approximation for the resistance on a monovalent metal is \rho=C(T^{5}/\Theta^{6})\int^{\Theta/T}_{0}\frac{x^{5}dx}{(e^{x}-1)(1-e^{-x})} (a)For T->\infty, show that \rho=(C/4)(T/\Theta^{2}) (b)For T->0, show that...

What class would you take if you wanted to take something just for pure fun? SCUBA diving, Mandarin Chinese, archery, etc? I'll be looking for something like this to fill my time soon.

Is it even possible? I have a Princeton AP Physics book that is supposed to prepare you for the test, but is that enough? It's almost impossible for me to take this class, but I feel I could do well on the test. Would Barron's or Princeton cover everything I need to know for the test?

Hey, I'm going to college next year and I am majoring in chemistry. Just wondering, what chemistry class was the most difficult to understand?

Homework Statement If a group has order 20 has 4 conjugacy classes, it must have a trivial centre. True or False? Homework Equations The Class Equation The Attempt at a Solution I believed the answer to be false with this following counterexample: 20 = lZ(G)l + (20/4 + 20/4 + 20/5 +...

Hello, I've lurked anonymously for quite a bit on these forums, and until now had no reason to register and ask a question. Background: high school senior with (otherwise) high GPA(3.9) and fairly good ACT score (31) seeking advice and consulting from experienced PF member. Now that...

I have never come across this term before in my few years of chemistry. At first, i thought it meant molecular shape, such as "trigonal planar" or linear. But apparently, that is not the case. Apparently, it is in some form of AX2E (2 being a subscript), but that's all i can find on the matter...

I am currently enrolled in a linear algebra class that started at the beginning of September, and it will end in about 4 weeks. We are using Shifrin and Adam's Linear Algebra: A Geometric Approach. The professor is great: he's a great teacher who really knows his stuff. However, it feels as...

So next semester I am studying one section of the Philosophy of Physics at Oxford. This is paid for through my college; thus I can only take 9-12 hours (I am going the third term which doesn't start until late April). I am already a little behind because I had trouble deciding and have three...