Recent content by Beenigma

That would be a much better option, as I already live in Europe. The procedure for getting into US universities are a lot different from what I'm used to, with all these standardized tests I have never taken. The only reason I'm even looking for Universities in the US is because I wish to...

Yeah, that is peculiar. It's been some time since I last dealt with oscillators, but the way I remember it, is that the equation tells us how damped the oscillator is. When the oscillator loses all its energy in one cycle, Q = 2π, which would imply that an oscillator does not oscillate unless Q...

Thank you for the recommendation. I have sent their department of physics an email, and I'll see what they have to say.

Hey, no problem. Good luck!

My guess is that it's a trick question. If you show that oscillator B cannot possibly finish even a single cycle (without being driven by an external source), and explain your answer, it should be good. The drawing you've been given is not very detailed and quite rudimentary, giving you room for...

I don't immediately see an error in the way you calculated the Q value. A Q value of 5 still means that the oscillator is critically damped and will not finish even one cycle. Could you post the problem text in its entirety?

Apologies, your original equation was correct. Q is defined as Your Q value of 4 is a little strange in this case. From the equation above, we see that the minimum value of Q for an oscillator that is able to finish even a single cycle is 2π which is roughly 6.3. A Q value of 4 would mean the...

I've got a feeling you misstyped the equation Q=2π(E/ΔE). I think it should be Q=2π(ΔE/E)? Anyways, you say that you have calculated the Q factor to be 4, so we can replace Q by four in this equation (using the "fixed" version): Q=2π(ΔE/E) => 4=2π(ΔE/E) By dividing by 2π on both sides, we get...

Good question, and something I should have addressed in my original post. The classes should preferably be taught in English, but I also speak Danish, Norwegian, and some Swedish.

That's an interesting question actually. Unfortunately I have no idea, but I would like to hear the opinion of people with more knowledge about this. Is it not Dark Energy (silly name) that is said to be cause behind the expansion of space? You'd might think any energy could contribute to this...

No problem! And thanks, might stick around :)

8Hi Mst3! If I understand you right, you want to know what the force on the ball will be, when it is snugly fitted in a tube that has ambient air pressure on one end and vacuum on the other? As Russ_watters said above me (although he got the equation a little wrong), the equation for the force...

Good day, forum. Last year I finished my bachelor in physics, and due to a mess-up on my behalf, I could not begin on my masters degree at once. This has given me a one-year pause which I spend working, and most importantly, thinking about what I wish to do from now on. I've come to realize that...