punk4ever

Well I think I have it figured out by I have no time to finish it really :P It's integration by parts, that I'm fairly sure of. u = (x^2+1)^(1/2) v' = x^3 u' = x(x^2+1)^(-1/2) v = (x^4)/4 Integral uv' dx = [ (x^2+1)^(1/2) * (x^4)/4 ] - [(1/4) Integral x(x^2+1)^(-1/2) * (x^4)/4 ] Then you have to do integration by parts again on [(1/4) Integral x(x^2+1)^(-1/2) * (x^4)/4 ] Does that help? The answer SHOULD be (1/15)*(x^2+1)^(3/2)*((3x^2)-2) but I didn't get it through going through the steps. There is a handy program which can do pretty much any integral for you without showing the steps (obviously) and it can be found at integrals.wolfram.com

No hard feelings, I hope. I still remember all the fun we had PK'ing on our noobs :) It's been too long, at least for me, to hold a grudge. Good to see you're doing well.

It sure has been a while.

Stiletto Formal.

Kernkraft 400 by Zombie Nation :)

I hate some of the favoritism (spelling?) I see around school, especially now at the university level. I'm not talking about affirmative action, I have nothing against that, but in-class favoritism in regards to grades.

That wasn't his son, that was his brother in law (Brendan Frazier), I believe. I can't watch The Green Mile without sheding a few tears and it was on just yesterday.

You must be an impostor because I see no pink! :cry: Wonderfully done :)

How funny. I just got done listening to I Never Said I Was Brave :D

Tucson, AZ 70 degrees Fahrenheit; partly cloudy with little to no wind; 19% humidity. It's bearable :P

yes Hooke's law is F = -kx where F is the restoring force of the spring, which is negative because its acting in the opposite direction to the force compressing or stretching the spring (which is of equal magnitude). I think the idea in the calculations was that the restoring force of the initial compressed spring becomes the stretching force once it passes equilibrium (two forces in the same direction, so the negative sign becomes irrelevant), although as i stated above, that logic seems to be faulty because that force ultimately reaches zero at equilibrium. I think your explanation that you found seems reasonable. The potential energy equation would have to be used because it is calculating the force of the block for the entire length of time. I recall using the potential energy equation for solving these pretty often, never Hooke's law unless I had to find an unknown variable.

It's been about 6 months since I've done my last Physics problem, but isn't Hooke's Law F = -kx? Secondly, when doing a problem like this, isn't it assumed that the friction of the spring itself is minimal so it is negelcted? You're looking for the force of friction exerted on the block and to find that you would have to use the potential energy equation because Hooke's Law would give you a force of friction for the spring itself? I have to bust out my Physics book but this is just off the top of my head.

Vampire Tears Just hit the quote button on this post and copy the text above :) For future's sake you make it like this: [url=www...]Insert Text Here[/url]

Me too. I think it's possible to set it up so that anyone with a Zune around you can see what you're listening to (if you want to allow it). That seems pretty cool as well. Since I'm a fanboy, I just hope these features are being put into iPods. :P It was discussed that the next iPod would have a wireless music transfer, too. :?

I know it's off topic but I got accepted there last semester ^_^ . Im starting next fall. You won't regret it..the atmosphere here is wonderful. I'm really enjoying it :D Okay this has gotten too off topic now :P PS: I PM'ed you Mage :)

yes...it sure is lol where did you end up going Punkie? with a 3.7 GPA you could get a job offer from any1 lol..you got nothing to worry about i have a 2.6 atm...pretty avg. GPA for a freshmen who figured it wuldn't be much harder than HS..i can pull a 3.0 b4 the semester is over tho i dunno how im struggling to get a B in chemistry when it's the same material as in high school i have a C in calc b/c of my TA..she's horrible and her grading is horrible. i make same mistakes as my roomate and he gets minus 1 on his test but i get minus 5...bleh i need to play catch up next semester :-w I ended up going to the University of Arizona :) Loving it so far, just not used to the grading and professors yet really :P I'm not worried about the B to tell you the truth, it's just eerie at first but I've come to accept it haha. And it's my first semester anyway, so it definitely won't stay a 3.7 :wink: I hope Virgina Tech is treating you well..err, well, at least better next semester :D

4.0 all through high school. So far at the university I have all A's except a B in Applied Calculus. It's going to be rough getting that first B at the end of the semester and seeing my GPA drop down to an abysmal 3.69. College is a slap in the face :P

It's rated R.

That was after my 100 combat party Spoof :D I'm in the mith plate with the pink skirt. Swtkittn is in the black wiz hat, Heroforhire2 in the white robes, Netbent was the baldy I believe, Mxmungrel__2 in the gnome outfit, and Cloaksim in the pink party hat :)

:3> Spoof :3> Moridin inspired me to achieve 99 Woodcutting and I dedicated it to him when I reached my goal :) And, of course, Oergg who is a constant inspiration for the zest and flair he brings to the game. :)

It was useful in the early days of RSC, but now has lost all purpose.

I thought this was one of those movies where the commercials provided the funniest parts of the movie. For the hype that was created, I didn't feel it was that hilarious.

Well, isn't it radical, or "liberal" in this case, ideas which fuel progress and advancement? It's usually brilliant thoughts and concepts which seem eerie to us now that end up becoming common place over the years.

I don't follow the Tip.It Times closely, but isn't it possible that the Editor is a collaboration of people who take turns writing articles and just put it under that one personna? I may be entirely wrong here, haha. :oops:

Roughly around March 2003 when I learned how to print screen O:) :oops: