Recent content by Unart

Never mind I missread the mass part. Maybe it did mean in moles, I think I misread and read part of another question.

So essentially you are supposed to find the mass percentage of N2H4 in the Hydrogen/Nitrogen mixtures. The way I understood it, the only way to find the mass percentage of the gasses is to find the mole percentage. Which I got as 25%, based on the fact that the ratio of product gasses to...

So essentially I followed pretty much what is in the picture here in this solution. https://www.slader.com/textbook/9780134162430-chemistry-a-molecular-approach-4th-edition/242/exercises/79/ My question is essentially why does he do the 0.07XXX mol f2 * 2mol clf3/3mol f2 * 92xx g/2mol f2 =...

Whew! Couldn't see the trees for the forest on that one. I had the right idea before I went to class on Friday, but somehow did some arithmetic or algebra error, and thought about the teacher not going over the chapter. Yesterday he said/ and also read on the book that the derivative of the...

Homework Statement What is the velocity vertor of a particle traveling to the right along the hyperbola y=x-1 which constant 5 cm/s when the particles location is (2, ##\frac{1}{2}##)? Homework Equations The Length of path forumula. $$ s\,=\int_a^b ||r'(t)||\,dt $$ Please don't make me...

Not a typo, may be a typo on the book but I doubt it. However the book does equate Kilograms with a unit of force in one of it it's problems, so it wouldn't be a surprise. These parameters applies to six different cross-products, I understand how to do half of them. They are the following. 17...

Homework Statement Calculate the cross product of (3u+4w)xw assuming that uxv=<1,1,0>, uxw=<0,3,1), vxw<2,-1,-1)Homework Equations Possible Relevant eqation: i) wxv=-vxw ii)vxv=0 iii)vxw=0 if and only w= λv for scalar λ or v=0 iV)(λv)xw=vx(λw)=λ(vxw) V) (u+v)xw= uxw+vxw ux(u+w)=uxv+uxw The...

on the z=1-rcos(theta)-rsin(theta)... how did you get the 1 if x+y+z=0 So are you saying that the g path function would be (x,y,z)=(rcos(theta),rsin(theta),-rcos(theta)-rsin(theta)

Homework Statement Calculate ∫∫f(x,y,z)DS for the given surface and function. Part of the plain x+y+z=0, contained in the cylinder x^2+y^2=1 f(x,y,z)=z^2. Homework Equations ∫∫F(x,y,z)Ds=∫∫F(g(u,v)*||n(u,v)|| N= TuXTv Tu= G(u,v)(du); Tv is the same only the derivative is with respect to v...

And made both of the equations x+1 and 1-x satisfy their respective points... but I think the upper and lower bound of x+1 is -1 and 0 respectively since it goes from 0 to satisfy point (0,1) and -1 for (-1,0) and goes from the first point to the other.

Thanks... Halls. I wasn't sure what to do, but I understand now. It's like you've divided the triangle into 2 pieces.

Homework Statement Green's Theorem to evaluate the line following line integral, oriented clockwise. ∫xydx+(x^2+x)dy, where C is the path though points (-1,0);(1,0);(0,1) Homework Equations Geen's theorem: ∫F°DS=∫∫ \frac{F_2}{δx}-\frac{F_1}{δy} The Attempt at a Solution What...

It does... the function is continuous...

Ok Thanks!

Homework Statement F(x,y)=<2xy,x^2+y^2>, the path is part of the unit circle in the 1st quadrant. And I'm supposed to calculate ∫F°ds given that info Homework Equations My question is if this equation would apply to the following problem ∫F°ds=θ2-θ1 Since this is a circular equation.