Recent content by jojoba

It has been a while since I've had calculus. I am working on a fluid mechanics problem: I have reduced the Navier-Stokes equation and this is what I have: mu [d/dr (1/r d/dr (r v(angular)))] = 0 How do I solve for v(angular) ?

I thought when they ask how far will the bird have flown is with respect to some origin, that's why I calculated the distance the bird had traveled when it hits Train B and subtracted the distance it travels in the opposite direction to the left in the remaining time which is 3/13 of an hour...

Two trains travel toward each other on the same track, beginning 100 miles apart. One train travels at 40 miles per hour; the other travels at 60 miles an hour. A bird starts flight at the same location as the faster train, flying at a speed of 90 miles per hour. When it reaches the slower...

Sorry this is the circuit:

This is the circuit at t(0-); Initial conditions need to be determined: Capacitor is replaced by an open circuit and inductor is replaced with a short circuit: These are the initial conditions I get: I through inductor (0-) = 3 A V across capacitor ( 0-) = 0 ( in parallel w/ SC)...

This is a problem given for laboratory analysis, but there are no relevant equations in our textbook to help solving the problem. Could anyone just give me a hint on what equation should be used to solve the problem? the only relevant equation I know is : shear stress = F/A 1. The figure...

Thanks Matlab alot. I have converted the following file from .xlsx to .xls using an online converter... I am not sure if it is going to be displayed correctly in the compatibility mode. Would someone please open this and tell me if you see the data and the stress vs. strain plot? Thanks again

Hi, This is a stupid question, but I just had to ask it: I had an excel file made using MS 2007 version and had to convert it to 2003 version. I renamed the converted file once saved on my PC. Does that (renaming) change anything in the converted file?

I guess I should have made it more clear. This is a problem in which we are supposed to find the Thevenin equivalent. I had omitted redrawing the circuit on the farthest left of the diagram ( which is shown by dotted lines). The farthest right of the circuit (where Voc is shown) is supposed to...

I am new to circuits analysis; just wanted to confirm I am doing this problem right: The partial circuit is attached to this post. Is V oc equal to the voltage across the current source?

"Which metals tend to be stronger, those that form FCC or those that form BCC crystals? " This is the solution provided which doesn't make much sense to me: "You should look at APF and coordination number of each crystal system to base your answer" Is this even a valid question? Doesn't the...