Recent content by Einstein2nd

I suggest you look up tidal forces. You have to take these into account when considering planets as large bodies, not point like objects (for many purposes it is sufficient to consider them as point like objects). Consider the Earth and the Moon. Gravity falls off with 1/r^2 yeah? This means...

Thank you kindly for your response. After analysing it a bit more I see exactly what you are saying. There isn't an error in the code, aside from the initial conditions which shouldn't be exactly zero for the initial velocity of the Sun. I have since tried some other examples too and have been...

Hello all. I'm currently writing a program in Matlab that works out the positions of N bodies under the influence of gravity. The code is setup such that it only requires a mass and an initial position and velocity for each body. Any number of bodies can be entered but for testing purposes I am...

Yeah that seems like sound logic. For my own curiosity, what about tidal forces? If you were standing in the middle of the building there could still be tidal forces? To make things simpler, assume it is a 1 storey building. Then perhaps divide the mass into 4 and assume that the forces are...

Homework Statement I've posted this in the homework section but really, it was asked by a young kid who had just been learning about gravity in high school science. It made my realize that I wasn't able to provide a superb answer. So, you have a man standing inside a building, what is the...

I was having a similar problem actually. Any ideas?

For part b) I was told it's not to do with conservation of spin. Conservation of angular momentum perhaps?

It was in a dark room with only a slight bit of ambient light. Could it possibly be from that? Also, any more help on the s - d series transitions?

Still a bit lost when it comes to these questions. Any more help would be much appreciated. Do you have any more help alxm perhaps?

I found a database with all known wavelengths but I have no real idea of where the red wavelength is so it's so hard to tell.

Thanks for the help mate. I used the database. I did a search between 6200 Angstrom and 6500 Angstrom, the smallest wavelengths in the red section. I got stacks of answers though. I have no idea what to pick. In the diagram that I have, it simply has 1 red wavelength labelled that I was asked...

Homework Statement Part a) The emission spectrum for Sodium lamp contains a reasonably bright red line in its spectrum. What is its origin? Part b) The possible transitions between electron energy levels for Sodium were analysed. There were no transitions between the s series (s subshell)...

I was doing an undergrad experiment on the sodium emission spectrum and I have a few queries. Of course, I was asked to analyse the famous yellow doublet which I'm on top of. I was also asked the analyse the diffuse series which was fine too. What I did notice however, was a strong red line...

Thank you very much for your time.

so you're saying I should do: |(-1-sin(delta))^2| + |(icos(delta)^2| That does give me sin2(delta) + 2sin(delta) + 1 + cos(delta) if I do it as you say. What I'd actually found before your most recent post is if I multiply what I have there by its complex conjugate. Please check if this is...