Recent content by smaan

sinθ = q sin20.5 = q 0.350207 = q 0.350207*2 = 0.700415 sin^-1(0.700415) = 44.5° Is that correct? By the way, thank you for all you're help, BvU. I appreciate you're time.

Yes, it would be over 90°, makes no sense. Which leads me to believe I need grating. So would my answer be a) cannot find this angle without ruling spacing of grating ?

So in my case the angle appearing at the 2nd order will be 41.0 degrees? Is that correct?

d is the space between the grating, correct? And λ is the wavelength. I don't have either. Just an angle for m=1. Still confused, but thank you for the reply.

Homework Statement Hello, I have a question regarding hydrogen spectral emission. A hydrogen source is viewed with a grating spectrometer, one spectral lines occurs at 20.5 degrees in the 1st order. What angle will this line appear in 2nd order (viewed through same spectrometer) a)...

Is is possible to get the Spearman coefficient on a TI 84? Not the Pearson, the Spearman.

Hello, I need help using my TI 84 to figure out this 4 part question. My professor went over it way to quickly in class, when showing us how to do it on the TI 84, I believe its only a few quick steps for each part though. EDIT: I have figured out part d, but am still struggling with parts a...

Hello, I'm not sure if this is the correct section to post this in, but I need some help with my graphing calculator. I also posted this in the Statistics section. I am given a set of X and Y data (2 sets of numeric data) and I need to find out how to find the Sxx, Syy, and Sxy in my TI84...

I tried squaring x, but obviously that is not correct.

Homework Statement I have no idea where the sum of x^2 comes from, from the information I posted. I know it must be something pretty simple but its completely going over my head. In the picture that I've attached, I am wondering where the 2431.72, 4901.66, and 3252.44 come from. Thank you...

Homework Statement ln(0.0693/0.0475) = (70435/8.314)((T3-298)/(T3*298)) Solve for T3 Homework Equations The Attempt at a Solution The fact that there are 2 T3's is really throwing me off, I feel that I am doing something algebraically wrong. 0.377 =...

Are chromium and copper the only exceptions to the Aufbau Principle? If not, what are all the exceptions? Is there a list of some sort that would state all the exceptions to the Aufbau Principle? Thank you.

Would the frictional force be F=ma? So would F=(16kg)(0.25m/s^2)=4N? So then, μk=Fk/FN. So, since I found the normal force to be 156.96 N, the kinetic friction coefficient would be 4/156.96 = 0.022548?

Homework Statement A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 N. Starting from rest, the sled attains a speed of 2.0 m/s in 8.0 m. Find the coefficient of kinetic friction between the runners of the sled and the snow. Homework...