Recent content by tg22542

  1. T

    Linear Algebra - Basis of column space

    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...
  2. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    I did try 3 sig figs.. still wrong. In my angle calculation (second step), I multiplied each wavelength by 3, is that correct?
  3. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    Sounds great. Thank you very much for your help this far.
  4. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    7.7mm didn't work
  5. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    Well the units don't matter, hold on I will convert it and give it a try!
  6. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    Most previous try: d = .1/1070 = .000093 * 10^9 = 93457.9 nm λ1 = Θ1 = sin^-1(3*705 / 93457.9) = 1.297° λ2 = Θ2 = sin^-1(3*630 / 93457.9) = 1.159° [3.2tan(1.297)] - [3.2tan(1.159)] = .0077 nm
  7. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    im doing all of this and still getting it wrong
  8. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    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...
  9. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    oops. Then shouldn't using (1/107) * 10000000 as my new value be right? It's still wrong.
  10. T

    Third-order maxima separation for 630 nm and 705 nm through diffraction grating

    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...
  11. T

    What Radius Produces Intensity Minimum?

    Nvm, figured it out.
  12. T

    What Radius Produces Intensity Minimum?

    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...
  13. T

    Electrical Circuits - Linear Algebra

    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...
  14. T

    Mass of sculpture given fm, mass, lengths etc

    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...
  15. T

    True/False -ish question, buoyancy

    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??
See more