Recent content by Artius

Hey all! I'm a little lost as to what I should get done in my last three semesters of college. I do plan on going to grad school and will take the GRE next spring, but I currently have no idea as to what else I should be getting done to prepare. I have passing interest in materials science and...

I hope someone answers this before 12:30 EST

Always look for the simplest way :wink: As in mv^2 /r = GMm / r^2, m2v2^2 / 2.7r = GMm2 / (2.7r)^2? I wish a certain tenured professor would see things your way :cool:

So Xcom = ∑ (1, n) mx / ∑ (1, n) m doesn't work here?

2 Questions of my own involving Gravity. If you have two moons orbiting the same planet in circular paths where Moon A has an orbital radius 2.4 greater than Moon B, how do you find the ratio of their orbital speeds? and another question from the same exam A moon of mass 3.2 * 10^22 orbits a...

I'm going to take a shot at solving the first problem, if not, I think I'll at least set it up Since it's a rigid body: Rotational inertia = Sigma(mi ri^2) therefore I = 5.2 * 2.3^2 = 5.2 * 5.29 = 27.51 kg * m^2 Since I serves as a sort of replacement in rotation for "mass" in...

This wouldn't happen to be NYU-Poly 2010 final would it? I was about to make a post on one of the questions lisetd here myself, and all of them are on the final from last year

Sorry about the frontness and ambiguity in my post, my original intention posting this here was to ask if anyone knew of a phenomenon or theory of interest that I could slap onto a power point presentation with roughly 6 or 7 hours' worth of research that would be sufficient to explain the...

I need some topic ideas within the realm of physics that might captivate the interest of fellow Freshman engineers when presented as a powerpoint. Something along the lines of Entropy Death, Carbon Nanotubing, Time Travel and causality, etc within two weeks. Some links to articles would be...