Recent content by SWiTCHRiDE

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    Solve 1-D Wave Equation: Superposition of Complex Exponentials

    ok, i get (in words i don't know how to type it fancy...) cos (theta) = [ e^j(theta) + e^-j(theta) ] /2 then just sub back in for (theta) because adding euler together was adding 2 complex equations right?
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    Solve 1-D Wave Equation: Superposition of Complex Exponentials

    guys, thanks for the help but I am so lost in all this stuff. Is there somewhere where i can learn about harmonic functions to get up to speed. i did crappy in the math course before the geophys course I am taking so I am pretty lost as it is. i do not want the answer (obviously) but an...
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    Solve 1-D Wave Equation: Superposition of Complex Exponentials

    Homework Statement Express the solution P(t, x1) = cos(!t − kx1) as the superposition of two complex exponentials. Show that each complex exponential is also a solution of the 1-D wave equation. Homework Equations just that THETA=P !=w whoops, made a type The Attempt at a...
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    Inertia and density distribution

    bump...please can somebody help, its the last question of my homework and its due in 1 hour from the time of this post. i don't have a lot of time to pound through a physics book as I am struggling to get MATLAB to display a plot of Newtonian potential for the earth. thanks.
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    Inertia and density distribution

    im still confused. i have read that section on inertia at hyperphysics. so if one knows radius, mass and orbital radius it IS possible to determine the mass distribution. (assuming the Earth is spherical)
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    Inertia and density distribution

    Assuming I have the mass, radius and moment of inertia of the earth, is it possible to determine the unique density distribution of the earth? The assumtion is the Earth is composed of N shells with constant density and thickness. I think so, because that's how geophysists do itbut I am not...
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    Inertia and Density question help

    Assuming I have the mass, radius and moment of inertia of the earth, is it possible to determine the unique density distribution of the earth? The assumtion is the Earth is composed of N shells with constant density and thickness. I don't think so, but I am not sure why or how...other than...
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