Recent content by suspenc3

I'm currently in 3'rd year mining engineering at a Canadian university, there is no actual "Petroleum Engineering" program here, it is done as a Mining degree with a petroleum option. I'm more interested in the petroleum side of the industry, but with the current situation concerning the oil...

Or you can write the function as: (1+e^{-x})^{-1} And then apply the power rule: \frac{d}{dx} u^n=nu^{n-1} \frac{du}{dx}

Oh yeah, I remember now...Thanks!

I need to integrate 2\int_0^1cosh(\pi x)cosnx Not asking anyone to do it for me, just what method to use? Thanks a lot.

Homework Statement Write down the complementary solution y_c and the correct particular solution y_p in terms of its undetermined coefficients. y^{'''}+y^{''}+3y^{'} -5y=x^2e^{x}+x^{2}e^{-x}cos(2x)+xe^{-x}sin(2x) The Attempt at a Solution I can easily find y_c but I don't understand...

Thanks a lot!

Yeessss, I suppose

When trying to solve a higher order differential equation, how can I factor it to find the general solution. A question like :y^{(4)}-4y^{(3)}+6y^{(2)}-4y^{(1)}+y=0. So I can write this as:m^4-4m^3+6m^2-4y^1=0. How can I factor m? The prof mentioned something about Pascal's Triangle, but I'm...

Yeah, just draw the vector, remember that sin(\theta)=\frac{opp}{hyp} & cos(\theta)=\frac{adj}{hyp}

Try a drawing

anyone?

Homework Statement The illustrated equilateral triangle is supported by two links. d = 0.5 m. At the illustrated position,\dot{\theta}= 9 rad/s and \ddot{\theta}= 0 rad/s^2. Find the magnitude of a_C. http://img406.imageshack.us/img406/7264/tonguech66315yx0.th.gif The Attempt at a...

I recently had a test question that gave a force acting on a bullet. The bullets mass is 0.016KG, and the force acting on the bullet is f=7000N-2.2*10^6N/s*t. The bullet is traveling 800 k/h when it leaves the gun It asked to find the total linear impulse on the bullet, and then how much...

You should go to a site like imageshack or something and upload your picture, then put the link here so the picture can be seen immediately

There is no radius given? Is that exactly how the question is written? It seems kinda confusing