Homework Statement
Let A be the matrix
A =
1 −3 −1 2
0 1 −4 1
1 −4 5 1
2 −5 −6 5
(a) Find basis of the column space. Find the coordinates of the dependent columns relative
to this basis.
(b) What is the rank of A?
(c) Use the calculations in part (a) to...
I still got it wrong.
I'll show you once more what I'm doing nowd = .1/1070 = .000093 * 10 000 000 = 934.579nm
λ1 = Θ1 = sin^-1(3*705 / 934.579) = x1°
λ2 = Θ2 = sin^-1(3*630 / 934.579) = x2°
[3.2tan(x1°)] - [3.2tan(x2)] = z
z*1000 = ansstill wrong thoughWhere exactly do i need to make...
Homework Statement
A grating has 1070 lines per centimetre, and a flat screen is perpendicular to the ray that makes the central peak of the diffraction pattern. The screen is 3.20 m from the grating. If light of two wavelengths, 630 nm and 705 nm, passes through the grating, what is the...
Homework Statement
In the figure, sound with a 38.0 cm wavelength travels rightward from a source and through a tube that consists of a straight portion and a semicircle. Part of the sound wave travels through the semicircle and then rejoins the wave that goes directly through the straight...
Homework Statement
Here is a picture of the diagram.
http://gyazo.com/f1b7051fda5b9e1d3a185c53abde1211
I must use the Gauss Jordan elimination method and solve for X1, X2 and X3
I am having problems setting up my equations
Homework Equations
The Attempt at a Solution...
Homework Statement
A heavy sculpture is suspended by a steel wire that is 91.0 cm long and has a mass of 5.40 g. In a strong wind, the wire hums at its fundamental frequency of 97 Hz. What is the mass of the sculpture?
Homework Equations
v = sqrt(T/μ)
μ = m/L
The Attempt at a...
Oh wow, actually the A for the duck was actually supposed to be F, the same. But yeah that will still be incorrect. So my assumption now would be; since it is touching the bottom and not floating, wouldn't it be greater then the one without the duck??