Recent content by mad_monkey_j

Homework Statement Work out the correct coefficient arrays for these equations: y(n)=y(n-1)+\frac{1}{5}(x(n)-x(n-5)) y(n) = 0.82y(n -1) + .28x(n) Homework Equations \sum a(r)y(n+1-r)=\sum b(k)y(n+1-k) where a(1) = 1  The Attempt at a Solution Ok for the second equation...

Ahh fair enough, thanks for the help.

Ahh so the first is =x'+y' and with the second if I change it to: p(p+qr) won't I end up with =p+pqr in the end anyway? Also how do you know what rule you're supose to use? Is there a specific order or is it just whatever you notice first?

Homework Statement Simplify the following expressions (x'y'+xy'+x'y) (p+q'p)(p+qr) Homework Equations Laws of boolean algebra The Attempt at a Solution For the first one I've found many ways to solve it... something isn't right here (x'y'+xy'+x'y) =x'(y'+y)+xy' =x'+xy'...

Ahh thanks can't believe I didn't notice it, all works nicely now.

Homework Statement Solve the following system of equations using Gaussian Elimination: -2a+5c=1 a+2b-c=2 3a-2b=3 Homework Equations N/A The Attempt at a Solution Augmented matrix (-2 0 5 | 1) R2 → R2 +R1/2 (1 2 -1 | 2) R3 → R3 - 3R2 (3 -2 0 | 3) (-2 0 5 | 1) Swap R2 and...

So i get pr+q' for the first one and i used demorgan's law to get to the second step in the second question

Homework Statement 1. Simplify the following problem using boolean algebra: (p+q'r')(p'q'+r) 2. Use algebra or karnaugh maps to simplify the following circuit: (z+xy')+yx+xzy'Homework Equations Boolean algebra rules and demorgan's lawThe Attempt at a Solution 1. (p+q'r')(p'q'+r)...

Homework Statement Find the solution to the initial value problem dy/dx - y = e^3x y(0) = 3 Homework Equations e^∫p(x) The Attempt at a Solution Do I treat p(x) = -1? I(x) = e^∫-1 = e^-x e^-x(dy/dx) - ye^-x = e^3x . e^-x e^-x(dy/dx) - e^-x . y = e^2x e^-x . y = ∫e^2x y = (2e^2x...

used my left hand lol, thanks.

So the induced field will be out of the page according the the first right hand rule.

So the electrons will move left causing them to travel clockwise?

Depends on the question, usually a particle or a rod. Don't know how to deal with the part of the coil rotating.

The velocity is the direction it moves, force is the direction the field moves a particle and field is the dirction of the dots on the page, in this case out of the page.

Left hand rule: Index finger is velocity, palm is force and thumb is field direction. First right hand: Thumb is current and curled fingers is field direction Second right hand: Thumb is velocity, fingers are field and palm is force.