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The problem

A uniform disc of radius $R$ rests with one of its flat faces on a horizontal floor. Coefficient of friction between the disc and the floor is ...

I have been thinking about higher dimensions lately, and so one thing leads to another and now I have an idea. Let's throw relativity out the window. Imagine a universe …

Ischemic heart disease is caused basically by an imbalance between $\mathrm{O}_2$ (which is translated into energy) demand and consumption by the heart. Therefore let us investigate how much energy the …

I'm trying to figure out the dynamics of the system below:

Two masses connected to an inverted parabola, free to slide. They are connected by a spring of constant ...

Let us assume that blood moves only along the blood vessel, by which we mean that there is no radial or angular components in the speed of the blood. If …

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