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Results tagged with homework-and-exercises
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user 143029
Applies to questions of primarily educational value - not only questions that arise from actual homework assignments, but any question where it is preferable to guide the asker to the answer rather than giving it away outright. Please READ THE GUIDANCE IN META before asking homework-like questions.
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Hamiltonian from the equation of motion
The equation of motion is
$$(1+e\cos f)\frac{d^2\theta}{df^2}-2e\sin f\frac{d\theta}{df}-\frac{w^2}{2}\sin 2(f-\theta)=0,$$
where $0<e<1$, $w\in const$. Taking $q=\theta$ and $p=\frac{d\theta}{df}$, …
- 155
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answer
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Angular dependence of the element of mass of an ellipse
I have an ellipse (a ring, not a disk; its center of mass in $C$) with a constant linear density and mass $m$, with semi-axes $a>b$; $\alpha$ is a dynamical angle describing the orientation of the bod …
- 155