Recent content by RoganSarine

Huh, wow... Thanks, I didn't even THINK about being able to cancel the integrals that result.

huh... This looks a lot simpler than my way... Let's see if I can finish it :P

Homework Statement Integrate: (2x^2+1)e^x^2dx Homework Equations The Attempt at a Solution I don't even know where to start , I either got to do this by basic substitution or by parts. Basic substitution doesn't help for obvious reasons, so I thought I'd do it by parts, but that...

Homework Statement Integrate: (xe^x)/(sqrt[1+e^x]) Homework Equations The Attempt at a Solution I tried substituting u = e^x So the equation became: Integrate: ln|u|/sqrt[1+u] But... That doesn't help me. Trig substitution doesn't really help, neither does...

[Solved] Improper Integral Integration Sorry, don't know how to use the latex stuff for integrals :P Homework Statement Integrate the following from 0 to infinity: 1/(sqrt[x]*(1+x)) Homework Equations Integrate 0 to 1: 1/(sqrt[x]*(1+x)) Integrate from 1 to infinity...

I can see where to get most of that equation but that last part: (x+2)/(x²+x+1) (x+1/2+3/2)/(x²+1/2+1/4-1/4)+1) (x+1/2+3/2)/((x+1/2)²+1-1/4) (x+1/2+3/2)/((x+1/2)²+3/4) But...Oh nevermind. Wow, ha ha... I've never had to break up an equation like that before (like, breaking up the...

Nevermind, it's late and I realized why it doesn't work because I forgot to take into consideration that the denominator is (1/polynomial) Anyone care to explain to me how to do it the proper way? [SIZE="1"] 1. Question 1 \int (x+2)/(x²+x+1) dx The only reason I ask is because my...

How does the acceleration help me though? Find the acceleration of the cheese to use in the elevator system using F = ma And then solve for tension that way?

Homework Statement •••23 In Figure 7-34, a 0.250 kg block of cheese lies on the floor of a 900 kg elevator cab that is being pulled upward by a cable through distance d1 = 2.40 m and then through distance d2 = 10.5 m. (a) Through d1, if the normal force on the block from the floor has...

Basically my instructor is confusing the heck out of me because I highly dislike how this course is structured. I dislike how in this specific chapter we are not taught: \SigmaW = \DeltaEnergy However, using this equation and my previous knowledge I can't seem to get the right answer in the...

How are you supposed to get the system's acceleration though? Fa = Force Applied Ff = Force Friction Fg = Force Gravity Fn = Force Normal \SigmaFx = MA Fa = 104a a = Fa/104? Doesn't really help unless I'm missing something. Force causing the friction (gravity) is: Fg = 16(9.81) Fg = 157N...

Probably. The formula that Delphi made for us works 100% more accurately and better than the trajectory formula in Jearl Walker's Fundamentals of Physics. I've never got it to work right asides in the football question which is right after it (I believe that you can use this formula too for that...

So in theory, wouldn't ax(t) = 3t vx(t) = (3/2)t^2 + c px(t) = (3/6)t^3 + ct + d If vx(0) = 5 then vx(0) = (3/2)(0)^2 + c 5 = 0 + c c = 5 vx(t) = (3/2)t^2 + 5px(t) = (3/6)t^3 + ct + d px(t) = (3/6)t^3 + 5t + d px(0) = 20 px(0) = (3/6)(0)^3 + 5(0) + d 20 = 0 + 0 + d d = 20 Therefore: p(x)...

Yes, the problem is correct. We have actually learned nothing about integration specifically, but I do know the basic calculus for integration and have a basic understanding of it. But I do not see how it applies. Basically, this question was not even assigned to us I don't think, I am simply...

Huh... Right. True. However, I don't ever remembering having to deal with anything that isn't constant acceleration. Any hints on what to start with?