Recent content by Enzo

Have you considered a different field of Engineering? I'm in my second year of mechanical engineering right now, and while it is getting pretty rough, I find it extremely interesting. I've done an engineering 101 course on electrical principles and whatnot, and I'm amazed that there are any...

Thanks for the help fellas, definitely makes things a lot clearer. I guess I was just having trouble understanding why the gradient for development length for laminar flow was greater than the one for turbulent. And once again, physics forum clears things up :smile:

Understood But given the formulas: Laminar: L' = Re*0.06*Diameter(pipe) Turbulent: L' = Re^(1/6)*4.4*Diameter(pipe) And two values for reynolds numbers: Re=2000, Re=5000 I'm left with: Laminar L' = (2000)*0.06*0.02m= 2.4m Turbulent L' = (5000^1/6)*4.4*0.02 = 0.36m Which...

Hey all I wasn't 100% sure whether to ask this in the general forums or the homework forums, it's more of a theory question rather than straight-up calculation question. If this is the wrong forum, please notify me and I'll repost this in the homework forum. I've recently done a fluid...

Heya Kieranl This is like your third curtin engineering question you've posted, so i'll assume you're probably doing mechanical engineering? Alls I got to say is that this one took me like 5 pages of working out. I double checked it with maple so I know its right, but maybe i did it in some...

That's right. The limits of integration are presented through the analytical expression of the domain: So the domain of this question would be: D = {(x,y)| 0<=y<=x, 0<=x<=pi }

Homework Statement \int^1_y\int^1_0 x^2*e^{xy} dydx Answer: 1/2 (e-2) The Attempt at a Solution I've tried about 4 ways of doing this, I can't solve it. It either ends up being a completely huge and wrong answer, or ends up giving me a integration by parts of something...

Heya folks at Physics forums. I'm having a bit of a problem with the theory of maths behind a simple formula used in F.M. This is purely a problem dealing with with mathematics rather than fluid dynamics. You'll have to excuse me, I really am a bit slow when it comes to these things, and...

In my engineering physics class, the ratio was probably close to...50 male to 1 female..

Homework Statement http://img159.imageshack.us/img159/1867/es100wi8.th.png http://g.imageshack.us/thpix.php a) Write an expression for V1 and V2 both in time domain and phasor domain (Solved) b) Write an expression for the current I both in time domain and phasor domain (Solved) c) Calculate...

Awesome guys..thanks for the responses...I was looking at this problem in complete bewilderment after the book gave me 120V. I'm actually really curious as whether I can do the first step of the solution (ie, the add resistors and current sources that are in parallel like that..)?

Thanks for the above responses - It was a tricky one for me... Hope nobody minds, but I've got another question, but I don't want to congest the forum with my homework threads, so I'll just post it in here. 1. Homework Statement Find the voltage across Vab (This is for a thevenins...

Diagram:

Homework Statement (See attachment for diagram) Known Values: R1 = 5 R2 = 15 R3 = 25 R4 = 5 V1 = 40 V2 = 20 I1 = 71/7 I2 = 25/7 I3 = 4 1) Find the power dissipated in each resistor 2) Find the power associated with each voltage source including the independent source and...

So.. Basically the question tells me that a plane passes through these points, so automatically, I know that these points reside on the plane. Realizing that I need a vector which is normal to the plane in order to find the plane equation, I go about getting a normal vector by using the cross...