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The Coriolis frequency ƒ, also called the Coriolis parameter or Coriolis coefficient, [1] is equal to twice the rotation rate Ω of the Earth multiplied by the sine of the latitude .

Bill Arensberg (born: February 14, 1980 [age 45]), better known online as AlphaOmegaSin, is an American YouTuber who makes videos on YouTube discussing various topics within the world of gaming. He does "rant videos", videos that feature him discussing whatever he feels is threatening the gaming world.

2024年10月4日 · 辅助角公式： sin cos tan A\sin x+B\cos x=\sqrt {A^2+B^2}\sin (x+\varphi),\tan \varphi=\frac {B} {A} i c o t a 如果本来就是一个一般式的三角函数该多好，碰到这种情况就可以往下走了，如果不是，想想能不能用辅助角公式凑，凑不出就下一题吧。

2025年1月10日 · sin是一个周期函数，而ωt刚好能代表周期，所以sin取ωt的周期为自己函数的周期，一旦周期定了，那么变化规律自然也就定了。

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这说明摆的运动可以拆分成没有 Coriolis 力的自由摆动（角速度是 \tilde {\omega} ），乘上一个地转效应引起的旋转系数（角速度是 \Omega \sin \varphi ）。

2020年6月18日 · The choice of nonprincipal ultrafilter determines whether the number you would call (− 1)ω (− 1) ω is equal to 1 1 or − 1 − 1, for instance. If sinω sin ω has to be infinitely close to a real number then the choice of ultrafilter would determine which number in …

2024年12月5日 · 简谐振动是周期振动中最简单的一种，它可以用正弦函数表示为xAsinωtφ 其中，A为振幅，ω为圆频率，φ为初相位。 圆频率ωrad/s又称为角频率，它与它与频率fHz，周期Ts的关系为，为了方便，也将ω称为频率ω2πfT2π 就简谐振动而言，得知振幅、频率及初相位三者，就确定了一个简谐振动。 通常把振幅、频率和初相位称为简谐振动的三要素。 如果将x视作位移，则对 (1)式的时间t求导便可以得到速度和加速度 x˙AωcosωtφA。 _振动用余弦函数表示.

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