Recent content by Spacec0wboy

Ah ok. But I don't get how we can assume that the line goes through x = 0, I mean most questions like this are rigged but with 2 random planes the chances of that happening are quite low aren't they? Hypothetically, what if it doesn't go through x = 0 y = 0 or z = 0? What happens then? Unless I...

Ok, but why do we put x = 0? Does that mean that both planes share a point with an x value of 0?

Yea, by finding the vector equation of the line then putting it into parametric form. We got the direction vector of the line before from the cross product of the 2 plane normals. Now we need a point on the line but I'm not sure how to get that.

Ok so using HallsofIvy's method I get: λ = -2/3*μ x = 1 - 4/3*μ y = 5/3*μ z = -μ Is this right? Thanks for helping me out and that method was pretty easy but I would still like to know how to do it using the direction vector of the line and finding a point on it, just so I know another way to...

Wow yep I can't even read the question properly, the normal is indeed (-1, 2,-2). So if I cross product (-1, 2, -2) with (1, 1, 1) I get 4i + 3j - 3k, which is the direction vector of the line. So that's half of what I need for the parametric equations, the other half is a point on the line, how...

Homework Statement Find parametric equations for the line of intersection of the planes x + y + z = 1 and r = (1, 0, 0) + \lambda(2, 1, 0) + \mu(0, 1, 1) where \lambda, \mu \in R Homework Equations The Attempt at a Solution I attempted to convert the 2nd plane equation to scalar form by...

Thank you for your response chrisbaird! So each atom in a magnetic substance acts like a small magnet itself. So does this mean that for the whole material to be magnetic that the north and south poles of each atom line up with the respective poles they are attracted to (north for south pole...

What exactly is magnetism on a particle level? I'm currently doing physics at school and we are doing a unit on electricity and magnetism. I can ACCEPT that a magnet has two poles and like poles repel and unlike poles attract. I can ACCEPT that a wire carrying current produces a magnetic field...

Homework Statement Is the reaction for the production of ammonia an endothermic reaction or an exothermic reaction? Explain. Homework Equations n/a The Attempt at a Solution I know that the production of ammonia in the Haber process is indeed exothermic and that the backwards reaction (NH3...

Bump I have progressed a lot with the solutions to the questions posted above in the attached image. Can someone please check my working for me in the attached pdf and notify me if I have done my calculations correctly? Also just for reference, a 5mL wine sample (with double the concentration...

ok so far what I've done is (for the dichromate) n = C x V therefore n = 0.04M x 0.02L = 0.0008mol and for the thiosulfate n = C x V n = 0.01M x 0.03076L <------ (that is the average titration volume for wine 1) n = 0.0003076mol Does this represent the number of dichromate and...

Anyone? I know I'm supposed to provide an attempt of my work but I honestly have no idea on how to even do any of this. I have an extremely good grasp of maths but my knowledge and understanding of chemistry unfortunately does not match this. Even if anyone could get me started it would help.

Hi guys, A few days ago we conducted a wine redox back titration in my chemistry class, and my teacher has asked us to calculate to answer all of the questions on a sheet she gave us. Attached is this sheet, outlining the method we followed, the materials used and all the questions she wants...

Hi all, I am new to the forums, so try to persevere with my general lack of knowledge. I am a student at high school and we have just recently been studying a unit in nuclear and atomic physics. I understand all the basic concepts such as the photoelectric effect, Planck's constant, electron...