Recent content by brushman

I'm considering doing a philosophy physics double major at the expense of taking a few upper division physics electives or math/engineering classes like Plasma Physics, Nuclear and Particle Physics, Intro to Solid State Physics, fluid mechanics, statistics, etc. Will this hurt my chances of...

Thanks. So to finish the problem I need to set up my equations and solve for I1, the current going through the imaginary voltage source. Then with the simplified circuit consisting of my Emf, Ref, and I1, I can solve for Ref in terms of I1 and Emf (where I1 is in terms of R1, R2, and R3). Is...

Homework Statement Find the effective resistance between the circled nodes in the following network (use a computer to solve the system of equations you get). Note that bump in the crossing wires meaning they're not connected.Homework Equations Sum of currents at a node is 0. Sum of voltages...

How far in advance should I contact professors about available summer research opportunities? For example, should I wait until a few weeks before summer begins? Right now seems like it'd be way too early. Thanks.

I'm an engineering physics major; its the same as a physics major at my school except for you have to take some engineering classes. What this means is an EPhys major won't have as much time to take other interesting courses like chemistry, biology and mathematics. While my classmates are taking...

Thank you. I can see that the results are equivalent since you can combine the two different constants into one, but wanted to verify my math was correct otherwise.

Oh, so the indefinite integral of 0 gives you a constant. So I'm still confused with if the left side simplifies to f(x), or f(x) + a constant. Besides the fact that I improperly integrated zero, I don't see any errors on the left side of my evaluations. Perhaps they are both correct, but...

Homework Statement Suppose I have d/dx f(x) = 0, and I integrate both sides with respect to x. I have worked out two possibilities, and I am not sure which is correct: 1) ∫ d/dx f(x) dx = 0 → ∫ f'(x) dx = 0 → f(x) + C = 0 or 2) ∫ d/dx f(x) dx = 0 → d/dx ∫ f(x) dx = 0...

Since the instructor of my course doesn't use a textbook and just teaches based off his notes, what would be a good text to supplement my learning (when asked what he recomends, he just said find something in the library). Does electrodynamics = electricty and magnetism? I've heard this one is...

Thanks. For the first row I did (2 x 10^(-5))(25) = x (2 x 10^(-4)) and got x = 2.5 so it seems to be working.

Calculate the volume of each reagent required to prepare 25.0 mL of each standard solution at the specified KSCN concentration. Fill in the rest of the table (attached). My complete guess is that the solution II needs to be incremented by 2.5 ml each time.

Homework Statement See attachment. The Attempt at a Solution I already did parts i and ii (correctly, I hope). On part iii I found 2 linearly independent elements to be: t+1, t^2 - 1. However, I don't understand how to show that these form a basis of W. Because W is a subspace of P2, and P2...

Homework Statement Consider a 4 x 4 matrix A = B C 0 D where B, C, and D are 2 x 2 matrices. What is the relationship between the eigenvalues of A, B, C, and D? The Attempt at a Solution I suppose you can write A as: b1 b2 c1 c2 b3 b4 c3 c4 0 0 d1 d2 0 0 d3...

I have the matrix: 1 1 0 0 1 0 0 0 0 First question: Is it correct that this is a 3 x 3 matrix (as opposed to a 2 x 2 matrix, since the last row and column are 0s)? I have found the eigenvalues to be λ1 = 1, λ2 = 1, λ3 = 0. Then I have found the corresponding eigenspaces to be E1 = E2 =...

I don't understand how it can be harder to keep a high GPA for upper level classes. Don't most universities keep a standard average GPA? For example, at my university, a lot of classes are normalized at the end so the average grade in the class is a C+/B-. Is this only done for lower division...