Recent content by physkid

I knew there'd be some web references to make me look silly. Thank you very much for your help.

Hi all, I was just wondering if anyone knew how to differentiate Bessel functions of the second kind? I've looked all over the net and in books and no literature seems to address this problem. I don't know if its just my poor search techniques but any assistance would be appreciated.

could you just substitute reduced mass in instead of using the star mass as in the doppler case?

I know how they get the mass from radial velocity measurements but astrometry is supposed to be more accurate as the orbital inclination is not a prevailant factor. I was just not sure how they actually get the mass. I mean do they measure the amplitude of the wobble and determine a orbital...

Ahh right i get it. Knowing star mass gives you planet radius from keplers third and then elliptic orbits with reduced mass formula should give an estimate of planet mass? is that correct?

Questions in the title. Any help is appreciated :)

Ok anyone with any experience in a physics department?

I am considering going in for summer at my university before my graduation year but being a first year i do not have any insight as to what it entails. Could anyone who has had such an experience advise me what its like. I'm doing a masters degree in physics so it will either be physics or...

moments problem Hi everyone, Just wondering if you could help with this problem a formula will do cos i don't know where to start. A steel beam 50 feet in length is suspended with pin connections at either end and bears a load of 6000 pounds in the centre. Its elasticity is 29 000 000...