Recent content by BryMan92

Homework Statement A right triangular prism ABD with inclination angle 30degrees and mass m can slide without friction along smooth horizontal surface. A uniform solid cylinder of mass m rolls down the inclined surface AB without friction. If both cylinder and prism are at rest...

That make's sense. Shouldn't I be able to use y=-rsin*theta to kind of derive that? Everything you said makes perfect sense (I do like the dotting notion!), but I am still wondering why rectangular equation has issues.

Homework Statement See image. Homework Equations ωx (ωx r) = anormal αx r =atangent x=rcos*theta y=-rsin*thetaThe Attempt at a Solution I solved for w=2 k rad/s and α= -1.5 k rad/s I also got the correct answer using the cross products. My problem is I am trying to do this problem in...

I got it thanks! I just had to run through it a but more thoroughly. My professor believes that doing a problem justifies as teaching. Cheers!

But, if the system has a net drop of l/2 how can the oil raise a full l? Do I not measure from the zero point, or do I have to measure from the change in height of the whole system? Additionally, at the zero line point in t, was l/2 already above the 0 line? If so, then this would make sense...

1/2/3. Homework Statement and equations Hi everyone, So, I have a fluids problem to do and I think there may be a slight typo or maybe I am missing something. The image of the problem is attached. So, the only problem I have is how L is defined. Since L is defined from below the zero...

I do have a small set of data that compares 10 vehicles with petrol and diesel engines (from the makers website), and a large amount from a website called fuelly.com. I hope this image will demonstrate the biomodality! Also, I am actually working with my countries Department of Energy, already!

Uart, this is wicked awesome and exactly what I needed! Thank you so, so, so much! I have a small amount of other, but I will neglect them! Thank you!

I do not have the data, I just have an average of the ENTIRE MPG of the country. I know %diesels and %gas vary change, but other than exact #s, I have some data that shows the average of a gasoline is 48 MPG, while the average of the diesel is 69 MPG. The difference in MPG between diesel and...

Thanks, chiro! I am glad to know there is a way to do this. My problem is, I do not have a large stats background. From what Google told me, it doesn't seem likely that I will be able to learn how to do this. I am curious, would I even have enough information to solve it? I know % diesel, %...

Homework Statement I am analyzing fuel economy of vehicles in Europe. Since there are gasoline (lower MPG) and diesel (higher MPG) I assumed the distribution to be bimodal. I am trying to deconstruct the data into a gasoline MPG and a diesel MPG. I have attached an image to explain my...

Oh, that's right. I misrepresented my r(t) function. We had to use Diffy Q's to solve the equation, so I did manage to do: rΘ"+2rΘ'=0 Then ended up with: m*omega_0*(r_0)^2 = m*omega(t)*(r(t))^2 (Which I thought was wicked cool equation because I completely forgot about conversation of angular...

Homework Statement http://imageshack.us/f/41/physicsc.png/ My professor gave the following hints: Write down what you know about how r (position of mass from hole) varies with time. Then write Newton's 2nd law in polar coordinates. For part (a), the differential equation that you are looking...

Gotcha, thank you very much for your help! :D

My thought process was, that if I have, say L = 10, and Z= 3, that would mean, I would have only have 3/10(mg)...but now that I think about it, that actually means I have 7/10(mg) because the tension is holding 7/10 of the rope. Can I think of it as if I hold my finger at a point z, what is...