Recent content by Scintillation

Hi, thanks for the referral, but unfortunately it seems that many of the links are dead. Does anyone have more recent links to resources?

Hi, my Prof. for general chemistry isn't too great, as he often goes on tangents and doesn't explain the required material. The textbook assigned (mcquarrie) is also really bad, so I've been instead reading Brown-Lemay Chemistry, which is better. Unfortunately, it doesn't cover the material...

Homework Statement We start with an ideal gas confined to half a container. Then, without heat flow, the gas flows into the other half as the partition is punctured. Find the new temperature after the expansion. Homework Equations Since there is no heat flow, I assume the process is...

Hmm, I am sorry to say, but I am still kind of confused. Now that I am rethinking the problem, I see that perhaps only one of them suggests convergence. If the bigger term converges, then the smaller term will converge too. 1/sqrtn is bigger, but it is divergent, so tells me nothing about my...

That is precisely the problem. Both of my comparisons are bigger than the original series, but one is divergent and the other is convergent. Can I say that just because one of my comparisons converges, that my original series also converges (and that the divergent series comparison provides no...

Homework Statement Simple question. Find the convergence or divergence of this term. The Attempt at a Solution I tried using the comparison test with 1/sqrtn, which is a divergent p series (p=1/2), and then with 1/2^n, which is a convergent geometric series. I don't know why the answers...

Homework Statement I was recently introduced to the concept of non-massless cables. I am used to solving problems where the cable is massless, and therefore tension on both ends of the cable are the same. However, my TA mentioned that this is only true in 3 instances. 1. If the cable is...

Hi. I am reviewing for an exam, and this is a topic that I did not go through very thoroughly. I understand how to calculate the derivative of an inverse function when I am given a point, as I simply use the equation (1/f((f^-1))'. So if I am given the equation y=x^3, for example, and am asked...

Hi everyone. I am getting ready to move into college (Cornell University), as move-in date is on Aug. 17. I will be majoring in Engineering, but I do not yet know what type. I am leaning more toward Applied Physics or perhaps Civil Engineering. I'm taking an Intro to Engineering class, which is...

Hi, I agree with tiny-tim. There seems to be some missing information here that is preventing us from making a correct calculation. Because the acceleration is constant, we know that the velocity will be increasing linearly. However, this means that average velocity ≠ instantaneous velocity...

Hi. This is very good advice! It is always good to improve people-skills. I think some places are always looking for volunteers. However, I will have to be careful as to what I will be doing. I volunteered somewhere once, and they had me holding doors/standing in front of doors and greeting...

"Brain Drain," summer jobs, advice Hi everyone. School is coming to a close, and I'll be graduating from HS next month. I thought that I should make a little post about my summer plans. I will be attending college this August, and I will be moving out from home (definitely a new experience...

Yes, I do not think that Physics 1 should require too much difficult calculus. Perhaps the only difference is that you will be relying much more on definite integrals, and dot/cross products. The Calculus AB curriculum would be sufficient, although some topics you may have to relearn.

Hmm, now that I think of it, I might have been mistaken about the inclined plane. While it is true that the work done by gravity will be the same, it is also true that the force required to move it up the ramp will be less because the distance will be greater. Regarding the other problem with...

Yes, which AP Physics class are you planning to take? I am now taking the C course, and I would have to say it is VERY challenging. If you thought regular physics was easy, you might find C hard. You will need to learn that physics is NOT about learning formulas, it is about understanding the...