Recent content by Beer-monster

Hi all 1. Homework Statement I have a function script for doing some analysis of data from a text file and making some plots. My script takes the filename as an input argument - this is very helpful for running the analysis over multiple files and replicating results. However, I have also...

Hi Choppy Thanks for the reply. Unfortunately, I can't make the COMP/IOMP conference this year. I'm hoping to attend and maybe present at next years event. However, the general idea, of getting out to a conference to network with someone who may be able to point me in the right direction, is a...

Hi all I was hoping a medical physicist from the UK may be able to help me out or point me in the right direction. I'm a British Citizen but for the last 5 years I have lived in Canada (my wife is Canadian). During this time I switched from a PhD in Condensed Matter physics to Medical Physics...

Here's the full question: A binary asteroid consisting of two components that are separated by 5.0 arcseconds on the sky at maximum separation. The binary’s center of mass orbits the Sun with semimajor axis a =60.0 AU. The orbital period is 40 years. Estimate the physical radii of each of...

The question I am attempting gives some limited data. The distance of the binary center of mass from the sun and it's orbital period. Also, that the asteroids orbit with each other is circular and the maximum distance between the asteroids as measured in arcs-seconds observed from the earth...

The perhaps I am thinking about the question wrong. Is 40 years really too long for the period of a binary asteroids mutual orbit.

Thanks for the replies. ehild. I had tried setting up the binary asteroids into a one body problem as you have described. The problem is I don't believe I have the period of the asteroids to solve for the mass. The only period, I believe, I've been gioven is that of the asteroids center of...

Thanks for the reply mfb. I could be wrong, but, given that the total mass of the binary asteroid is much smaller than the mass of the sun, the period of it's orbit around the sun would not dependent on it's mass. So I'm not sure how I can use the period of that orbit to determine the mass of...

Homework Statement Two asteroids (approximately the same size and mass) are orbiting each other at a given radius a. The center of mass is orbiting the sun at a distance (semimajor axis) b with an orbital period of P. I would like to estimate the mass/size of each of the asteroids. By...

Homework Statement An flying object of mass M experiences a lift force and a drag force dependent on the it's velocity: F_{l} \propto Wv^{2} F_{d} \propto Av^{2} Where W and A are wing surface area and "cross-sectional" area. To sustain flight the object must fly at a minimum velocity...

Thanks for the reply. No mention of different units that I can see. The author also uses a similar formula for a cavity with a neck and includes a speed of sound term. To be completely frank, I'm checking a wikipedia article. An error is therefore, not completely unexpected. Though I lack...

I came across this equation, said to describe the relation between the resonant frequencies of air in a spherical cavity open at the top. D = 17.87 \sqrt[3]{\frac{d}{f^{2}}} Where D is the sphere diameter, d is the diameter of a small circular cavity at the top of the sphere and f is the...

Thanks for the reply. What would the physical interpretation of the complex number phi(x) be? The wavefunction of the state with eigenvalue of p?

Is there a system that should be treated quantum mechanically but where the particles can be considered distinguishable?

I'm trying to "sure"up my Quantum Mechanics and found an sheet of mostly conceptual review questions. A sort of "Quantum minima". I'd like to check my answers to a couple of these. Firstly: In terms of state vector the wavefunction is the expansion coefficient (probability amplitude) of a...