Recent content by plazprestige

Homework Statement Homework Equations P = V^2 / R 1/Rt = sum(1/Ri) (parallel) The Attempt at a Solution [/B] Since all the answer choices express the solution in terms of V^2 / R, I tried to find the voltage drop across resistor #2 to find the power. I collapsed the two parallel...

Could you explain how to get the sign right? I don't understand why it's negative rather than positive.

Ok, I got the magnitude right (13) but the sign wrong (it was - 13 V). I don't understand why. If it wanted the potential difference from b to a, why would you not start at b and work your way towards a?

Oh, I think I understand. So if I start at point b and end at point a: -1(6) + 20 - 1(1) = Vb - Va = 13 V Is this correct? I only I have one try left, so I don't want to squander it.

For battery 2: -2(1) - E2 - 2(2) - 1(6) + 20 -1(1) = 0, solve for E2 (Kirchhoff's voltage law around the large loop) For battery 1: E1 - 1(1) - 1(4) - 2(1) - E2 - 2(2) = 0, solve for E1 (Kirchhoff's voltage law around the bottom half loop)

I used Kirchhoffs voltage law to find the battery voltages. Could you elaborate on how I unknowingly found the potential difference between b and a please?

Homework Statement [/B] Find the potential difference between points b and a in the circuit below I have already solved for the voltages of the two batteries (1 and 2) in the circuit (18 V and 7 V respectively) 2. Homework Equations Kirchhoff's Rules 1) Potential difference across any...

Thanks strangerep, Some of that went over my head, but this is what I gathered from your explanation Having a wave function that is not a solution to Schrödinger's equation is like having a classical object that doesn't obey Newton's second law: in both cases, you cannot predict the future...

So when you find the probability of finding the particle by integrating the square of the wave function in such a case, you are only getting the probability at t=0? Whereas if the wave function satisfied the Schrödinger equation, it would allow you to find the probability (as well as other...

If there exists some normalized wavefunction ##\psi## that is not a solution to the Schrödinger equation (1D), what does this mean? You can still presumably use the square of the wave function to ascertain the probability it exists at some interval in space, but does it provide any other useful...

Thank you both for your in-depth explanations. I figured that the professor was hand-waving, but it is nice to have at least some rudimentary idea of where the Hamiltonian (or the kinetic energy component) comes from. To Bill, I am familiar with the basics of Einstein's relativity, so I would be...

In my physical chemistry course, we are learning about the Schrödinger Equation and were introduced to the Hamiltonian Operator recently. We started out with the simple scenario of a particle in 1D space. Our professor's slide showed the following "derivation" to arrive at the expression for the...

Ok, so I understand why the rock will approach the floor now, but I do not understand how the person is under similar conditions as if he were on earth.

At the moment, I am reading the book Relativity, written by Albert Einstein regarding his special and general theory of relativity. In his introduction to general relativity, he poses a thought experiment: Suppose we have a large chest in space far away from any appreciable mass (stars...

Thank you very much for your assistance. I appreciate that you took the time to walk me through the concept of the problem rather than just spitting out the answer. I also now see why the matrices are useful (for solving the system of equations). I know that much about matrices, at least.