Recent content by falcon0311

I've got it figured out. -1.82 N/m^2 = \tau_{yx}

So I've got this velocity distribution for laminar flow between parallel plates. \frac{u}{u_{max}} = 1 - (\frac{2y}{h})^2 h is the distance between the plates with the origin placed midway between the plates. I'm assuming this is for water flowing at 15 deg C with u_{max} = 0.10 m/s and h...

From what I can remember, this wasn't covered in my class, however it was a bonus question on a test, and I was wondering if someone could take the time to enlighten me on this one. Find \frac{\delta f }{ \delta x} and \frac{\delta f }{ \delta y} when f(x,y) = \int _x ^{x^3y} \sin (t^2) dt

I'm not really sure that whole equation is necessary, but I'm also not sure how to shorten it and figure it out with the two variables given.

1...v( delta Pm )^2 - * ------------------- = I 2...B I think what I'm seeking is sm, in which case sm = (delta Pm) / (kB) [k is from (kx - wt)] Anyone know a program or website that let's me type scientific equations? This spacing stuff gets old fast. If I work those...

I'm given two things: frequency, f = 313 Hz intensity, I = 1.13 uW/m^2 (microWatts per square meter) I'm supposed to find the amplitude of the air vibrations caused by this sound. As always, a push in the right direction is greatly appreciated.

A cylindrical wooden log is loaded with lead at one end so it floats vertically in water. The submerged part is 2.56 m (called L). I'm supposed to show the oscillation is simple harmonic. Can someone point me in the right direction? For some reason I'm thinking gravity and density play a big...

I kinda figured what you were getting at. Glad I could help.

I think your answer to b) is off. It's rotating once every 1.424 806 448 872 75 2 ms. so for it to rotate 1.000 time plus 0.0106 times, you're definitely not going to be in the 1400 second range. That's about 20 minutes to go a little more than it was going in beyond less than a second...

Take the biggest feather pillow you can find and secure the egg on top of the feathers in the case. Bubble wrap should work for extra cushioning. The downside of course will be if the pillows rolls over in free fall putting the egg on the ground before the feather cushioning.

Could you clean up the wording on that a little bit? Go ahead and state exactly what the book says, please. It would seem to me you didn't break while the truck did, so the truck should have traveled less distance than you. That's if the police officer is driving the truck. The distance...

Thanks for the help; you cleared that up pretty well. :biggrin:

I have a box when suspended from a cable in a vacuum is 4450N and is .608m wide (it's also a cube). W = 4450N = T1 (tension on the cable) V = 0.2248m^3 When I suspend it into a liquid, L/2 m from the surface, of density 944 kg/m^3, I want to know the buoyant force, the new tension of the...

I've got a U-tube filled with Mercury and water. If I add 11.2 cm of water to the left side, how much does the mercury rise on the right side? For simplicity's sake, D will stand for density, p0 for initial pressure, w = water, m = mercury, h = 11.2 cm for the water and d = the distance the...

The first one sounds as if it should be a frictionless surface (ie no friction). For the answers, are you looking for stuff like, the object is accelerating, deccelerating, or the object is at rest? I'm not sure what kind of answer you are looking for, but it seems to me if the 0 < kinetic =...