Recent content by Jay9313

ρHomework Statement Oil with a density of 850 kg/m^3 is flowing at a velocity of 20 m/s at the atmospheric pressure in a horizontal tube elevated at 20m above the sea level. Please determine the diameter of the tube if the rate of mechanical energy for oil is 60000 J/s Homework Equations...

Oh, I was confused. I thought that if you multiply all of the functions together, then they will end up being an odd function, meaning that the entire set multiplied together is mutually orthogonal. BUT the question was asking about two functions at a time being multiplied together. It makes a...

Yeah, I got that! Lol. I'm just wondering, because it seems that the largest subset can only contain two functions..

Homework Statement A set of functions, F, is given below. Determine the size of the largest subset of F which is mutually orthogonal on the interval [-1, 1], and find all such subsets of this size. Show all of your work. F = { 1, x, x2 , sin(x), cos(x), cosh(x), sinh(x)}Homework Equations Not...

I actually considered using a moment approach such as yourself, but I didn't want to introduce a new variable, as I already had quite a few unknowns. But thank you so much, you have no idea how much I appreciate it.

Thank you so much! Could I trouble you to show me your work using the moment balance? I would be very grateful!

I added a new photo of my work and I tried to clean it up and show more thought progressions. I left more of the symbols in and didn't change them to numeric values, but only got so far. If anyone has a solution, please feel free to show me how to get there.

Without rounding, that brought my answer down to 61.8 degrees. I can try to re=work it without replacing any values with numerical values if you'd like

I completely agree. I was really against putting numerical values in, but If I had not done that, I would have really long expressions that would clutter up my work. The .235 in line 4 is .235mg, where mg is the weight. And I did mess up the third line (Ff1=FN Let me re-work that line really...

Ok, so I have completely *solved* this problem. What I mean is that I have attached the problem in a photo, and my work in a separate photo. My first answer was 62.2° and I did not round at all, I left all of the answers in my calculator. I rounded some on the second time through and got my...

I split it up, and it made it worse, and I had to do long division, but I got an answer. It's nasty, but I got an answer.

That's not really working at all

Homework Statement This is an arc length problem in three dimensions. I was given the vector r(t)=<et, 1, t> from t=0 to t=1 Homework Equations Arc Length= \int |\sqrt{r'(t)}| dt from t1 to t2 where |\sqrt{r'(t)}| is the magnitude of the derivative of the vector The Attempt at a...

I have also managed to introduce a few new variables. I have introduced h+H=5 (The length of the rope) and y and y+0.75

Homework Statement http://media.cheggcdn.com/media/76d/76dd5c56-43a5-44d3-b8b8-40ba63a9010a/phpYYNJyN.png Cable ABC has a length of 5 m. Determine the position x and the tension developed in ABC required for equilibrium of the 100 kg sack. Neglect the size of the pulley Homework...