The Attempt at a Solution
As you can see, the solution is shown just below the question.
Essentially, I don't understand how the x, y and z component of the vector field has been separated because the numerator of the vector field's fraction is: (x^2...
How is the expected frequency column worked out for each interval of trains?
2) My attempt
Take the first interval, 60 - 62, I thought about doing this:
(62 - mean) / standard deviation
(62 - 67.45) / 2.92 = - 1.866
using Z score < - 1.886, from the normal distribution table, I get:
The framework is attached below. I've tried going to each joint and resolving the forces vertically and horizontally. I've got to joint B and I'm stuck, because I have three unknown members there. And its the same if I go to joint J.
what do I do?
Its attached below. I don't understand how you work out the total head. Can someone explain how you do it? I'm really struggling.
I know how to do the elevation, which is just the height above/below the datum level. And I've checked the solutions as well, it seems like you're supposed to work...
Theres no rebuilding, I've built the thing, and now I've got to analyze it as it is (terrible situation I admit). The whole structure is supported at its two ends. One is shown on left of my diagram, hence there is a 4KN arrow, and the other is the right hand side of the structure which isn't...
This is actually half pf a complete structure (which I have designed and built), so I have omitted the rest of the right hand part in my diagram, but lets assume that we know the forces in the other members (caused by the applied loads). What I want to ask is, whether theres a way to work out...
I want to find the force in the vertical purple member.
Assuming I know the forces in all the other members, theres a problem with working out the force in the purple member.
(Bear in mind, I'm using the method where I assume equilibrium at each joint in the...
Sorry about that, what I meant to get across, was that I understood the method in a sort of algorithmic way, but didn't understood the reason behind steps due to not understanding some basic stuff like 'level curve'. Anyway its sorted now.
I've done the first part, but I'm stuck on the second paragraph of the question. Maybe I'm being stupid, I don't even understand exactly what is meant by, 'the level curve'.
I also don't quite understand the whole concept of directional derivative. When it says, 'the gradient in the...
the matrix I posted in the pic inb my 1st post was for matrix A, not (A - I*lamda)
I've done what you've suggested, by writing down A - I*lamda, its basically the same as matrix A, except for the three values in the central diagonal, they each have '- lamda'
I'm trying to calculate the...