Recent content by NucEngMajor

However, x free should 0 as the oscillator is at rest so I just need the forced solution for F=const.

For work could I just plug x(t) = x(particular) + x(complimentary) into my initial ode and integrate w.r.t. x?

Homework Statement Force F = const is applied to H.O. initially at rest with mass m, freq w0, damping T. Find x(t). Find work as function of time. Homework Equations mx'' + Tx' + kx = F for F= Constant The Attempt at a Solution First obtain complimentary solution for free H.O. which I get...

Homework Statement Rod of length b and mass m topples from vertical position at theta = 0. Calculate the reaction force f as a function of theta. What is the minimal and maximal values of f for theta between 0 and pi Homework Equations Third law?[/B]The Attempt at a Solution I never really...

So most application have three slots for research interests. My question is should we put down our top three or would this look like we are indecisive about what we want and should only put down one? That is, would the committee consider us for all three separately since each one has a different...

So I thought I was prepared for the GRE, I studied on and off for about 2 months with intensive study for the past 3 weeks, completed all practice tests, know most of the equations. I don't know if I can attribute this poor test performance to anxiety or just lack of preparation ( I know many...

There's about one week to the Physics GRE. I've worked through all five past exams and corrected mistakes. What would those of you that scored well recommend I do in this last week or so before the exam? Should I retake the five exams timed? Work through the 500 exam questions slowly? Just...

Homework Statement Griffiths 4.15: A thick spherical shell of inner radius a and outer radius b is made up of dielectric material with a frozen in polarization. P = k / r in the r-hat direction. There is no free charge (why?). Find the electric field inside and out. Homework EquationsThe...

So, I want to apply to a graduate program in physics in the fall. I have a decent 3.5 overall gap (3.8 upper level physics), but I feel like my course work is light. I'm graduating this semester and am contemplating coming back for a few more courses (maybe graduate) to strengthen my application...

Ended up using algebra and getting a sensible answer. Thanks

How does one go about constructing M from this? Not looking for answer, but I quite honestly don't know how to start...

Homework Statement Consider the double well potential with two wells separated by delta function in middle. V(x) = V0 > 0 for x<-a and x>a 0 for -a<x<0 and 0<x<a αδ for x =0 1. Find Bound state energies 2. Find odd solns and their eigenvalue equation. Give solns in...

How can position^2 expectation be greater than the Length of "box"? I mean <x^2> = L^2 / 3. Say L=100m then we have <x^2> = 333m. How is this possible?

I'm just confused why the energy is En plus some additional hf. Initially it is unbound, n = infinity, right? After we drop to some E1 or En?

Would you kindly explain why its T = En + hf and NOT T = U(r) + hf?