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# Posts tagged differential-calculus

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2 posts
60%
+1 −0

Suppose we have a arc of charges with some charge density $\lambda(\theta) = sin\theta$.I am using polar coordinates for convenience.But how can I find the direction of the unit vector of the net e...

0 answers  ·  posted 3mo ago by MissMulan‭  ·  edited 3mo ago by samcarter‭

33%
+0 −2

Suppose we have a free falling object inside a planet's gravitational field with strength g.The planet's atmosphere provides a drag force which is dependant from the u^2 of the particle. Suppose t...

0 answers  ·  posted 6mo ago by MissMulan‭  ·  edited 6mo ago by MissMulan‭

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