Homework Statement
Problem located in attachment.
Homework Equations
Parallel, series and wheatstone bridge equations for resistors
The Attempt at a Solution
Converted the circuit to look less confusing. Work shown in other attachment.
I am simply using the equations relating to simplifying...
Homework Statement
Determine Vy in the circuit of the below figure:
(In attachment)
Homework Equations
ohms law
resistance adding equations for parallel and series
The Attempt at a Solution
So I found Vx=(1.2A)(5ohms) = 6v
Afterwards I computed the current supplier: (6)(0.1)=0.6...
Homework Statement
dy/dt=y((3t^2)-1), y(1)=-2
Homework Equations
Basic integrals
The Attempt at a Solution
integrate on both sides: dy/y=dt((3t^2)-1)
========>ln(y)=(t^3)-t+c
========>y=e^((t^3)-t+c)
========>y=e^((t^3)-t)e^(c)
I am not sure if its some e rule that I forgot...
Homework Statement
It would help if you guys had access to Maple
Anyways here is the problem: http://poibella.org/calc3f11/wp-content/uploads/2011/09/lab_3_vector_calc_F_11.pdf
It is on question 12 asking for flux and the questions after that.
Homework Equations
In the link
The...
I am making a coil gun for my physics project and I am wondering if it is better to use a thick wire or a thin wire for the coiling process. (both are magnetic wire)
Also, when I coil it, am I supposed to make only one layer of coil as opposed to several layers?
Thanks in advance.
Homework Statement
A 3x3 matrix with all 9 of the numbers being .3
Find all the eigenvalues.
Homework Equations
The Attempt at a Solution
I worked through it and I ended up with (l=lamda) l^3-.9l^2+.54l-.162=0
With my calculator I found one of the values, which means that there...
Homework Statement
Find a basis for each of the spaces and determine its dimension:
The space of all matrices A=[a b, c d] (2x2 matrix) in R^(2x2) such that a+d=0
Homework Equations
The Attempt at a Solution
So I jumped at this question without knowing too much about spaces and...
Homework Statement
There are two questions in my problem set that are giving me a hard time:
1. The cross product of two vectors in R^3 is defined by [a1, a2, a3]X[b1, b2, b3]=[a2b3-a3b2, a3b1-a1b3, a1b2-a2b1] (they are all one column) Consider an arbitrary vector v in R^3. Is the...
Homework Statement
Consider a linear system of four equations with three unknowns. We are told that the system has a unique solution. What does the rref of the co efficient matrix look like?
Homework Equations
The Attempt at a Solution
When it says "unique solution" I'm going to...
Homework Statement
Find all solutions using Gauss-Jordan elimination:
[ 0 0 0 1 2 -1 l 2
1 2 0 0 1 -1 l 0
1 2 2 0 -1 1 l 2]
Homework Equations
Switching rows,
able to scale any row
able to add non zero multiple to row
The Attempt at a Solution
What I did was...
http://www.mediafire.com/?dqjlrfbu0m63l67 [Broken]
Hey I've been trying to recreate this circuit on a breadboard for a while and it never works...
Then I try to make it in a circuit simulator and it still doesn't work. Anyone know if the circuit actually works?
Also I believe this circuit can...
Homework Statement
Particle A moves along the line y=30m with a constant velocity vector of magnitude 3/ms and it is parallel to the x axis. Right when particle A passes the y-axis Particle B leaves the origin with 0 initial speed and a constant acceleration magnitude of .4m/s/s. What angle...
Homework Statement
Vectors A and B (both with the lines over it) lie in an xy plane. Vector A has magnitude 8 and angle 130 degrees, Vector B has components Bx=-7.72 and By=-9.2.
a)What is 5(vector A) dot vector B?
b)What is 4(Vector A) cross 3(vector B) in unit vector notation and magnitude...
Homework Statement
Derive the kinematic equations for constant a from change in x=V(avg)Xt & change in v= a(avg)Xt
Homework Equations
v=v(o)+at
(Every other equation that can be made from x=x(1)+V(0)t+.5at^2)
x= position
a=acceleration (constant)
v=velocity
t=time
The Attempt...
heres a partial pressure one:
1. A mixture of gases containing equal weights of carbon dioxide, CO, and ammonia exerts an overall pressure of 450 torr. What pressure is exerted by each gas individually?
my last question is:
2. The relative rate of diffusion between two gases is 1.89. If the...