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人教版的物理必修二中跳过了对匀速圆周运动的向心力的推导,用精确的实验表明,向心力的大小可以表示为...或...这一套模糊的说辞蒙混过关了。这篇文章旨在帮助高中生理解公式的来历。 考虑一个物体在圆周上运动。我们记圆周运动的半径为$r$,线速率为$v$,角速度为$\omega$,$0$和$t$时刻的线速度为$\vec{v_{i}}$和$\vec{v_{j}}$,经过的角度为$\alpha$,易...
This how-to guide will teach you how to invent wheels with Autotools & C. Note that it isn’t detailed, just to give you some ideas how the whole system works. Introduction Requirements My Au...
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