Recent content by Miriverite

Homework Statement http://mp.pearsoncmg.com/probhtml/ActivePhysics/pt1a/Media/CircularMotion/SatellitesOrbit/Sim1.html This applet shows satellites orbiting a central body from various starting distances. The mass of the central body is much greater than the masses of the satellites. You...

I see. Thanks a bunch!

If a=-b adn b=-d, then my above function satisfies for all a - that's good enough, yes?

Well then: (3a+c) = -(3d+b) = 0 a = -d c = -b c = -3a b = 3a Plugging in: f(x,y) = ax^3 + 3ax^y - 3axy^2 - ay^3 But if you take the double partials: fxx = 6x fyy = 6y and 6x-6y =/= 0 for all real numbers... EDIT: Wow, I'm stupid. I took the double partials incorrectly so I...

[solved] solutions to Laplace's equation Homework Statement Find all solutions f(x,y) that satify Laplace's equation that are of the form: ax^3 + bx^2y + cxy^2 + dy^3 Homework Equations Laplace states that fxx + fyy = 0 The Attempt at a Solution fxx = 6ax + 2by fyy = 6dy + 2cx so...

Walter Lewin does 8.01, which is a slightly lesser mathematics involved version of Physics I. The one posted above is 8.012 by Adam Burgasser, which is appropriate dubbed "Mechanics for Masochists."