Recent content by nicedazed

Thanks. Both good ideas. I never trust google image searching because perhaps the images are often not true colour. As for looking at stars at night, I'm sure so many of the stars seem to appear bluish, but then again I've never looked up at the sky with a telescope. Having said that, I've...

Obviously if you looked at one it would appear white as it's so bright and stars are black bodies so emit all over the spectrum (correct me if I'm wrong). But as the sun is a yellow star, it looks yellow around it (unless that's the atmosphere of Earth getting rid of blue?) and has a yellow...

I understand the role of an image sensor is to convert incoming light into electrical charge (by splitting the light into RGB values and then measuring the intensities of each), but how does this occur? I know the answer is very basic (the sort of sensors I'm talking about are CCDs and CMOS)...

Quantum numbers of atoms in a given state "(number^number)letter" Homework Statement An atom is in the state 42F. Write down the values of n,l,s and j. Homework Equations The Attempt at a Solution n=4 l=3 I'm having problems with s and j. I know j=l+s, does one...

Now it makes sense, thanks a lot. My lecture notes are slightly confusing. There's just one thing I don't get: Let's add a neutron: 18O. On Wikipedia, it says the spin is 0. Once again, parity = +1. The additional spin is another +1/2. Now, using the formula j=l+s, =2+1=3. BUT, am I correct...

Parity= (-1) ^l l=2, to parity=+. s=5/2 for the neutron. so is this is the spin? what is j? as parity =+ then j=2+(5/2)?= 9/2? I'm sure that's not right... if anyone can tell me what I'm doing wrong it'd be massively (unlike a photon) appreciated! I know this is a very easy question, it's...

Homework Statement Oxygen 17, work out j (nuclear spin)Hi. Assume oxygen 17 atom. j is supposed to be 5/2. How does one work this out? from what i gather, l for protons is 1, and l for neutrons is 2. How does one work out j, and what would s be? Partly what I'm confused about is for the...

Homework Statement I'm not too sure if this is the correct forum, but I had an experiment where we were timing things with a hand held stopwatch. The stopwatch goes to 0.01 seconds, but clearly the human error would outweigh that error. So, if anyone could help me, I would like to know...

Hi guys, first post (hopefully not only). If 2 stars are in an apparent binary system, how do you calculate the "combined apparent magnitude" of the system if you know both their apparent magnitudes and their distance from you. I can work out the apparent magnitude (even though that's not...