## Newton’s Second Law

Newton’s Second Law is symbolically written as $\vec{F}_{net} = m \vec{a}$. Here, $\vec{F}_{net}$ is the net force on an object with nonzero mass $m$. If the object has a mass of zero,…

## Simple Interest and Compound Interest

Here is a series of videos I made about simple interest and compound interest. Simple Interest and Compound Interest Semiannual Interest A Special Case of the Compound Interest Formula

Let $F(x,y,z) \equiv f(x) g(y) h(z)$. In this previous post, $\vec{\nabla}F(x,y,z)$ was written in terms of spherical coordinates and unit vectors for a spherical coordinate system. The corresponding equation was found to be \$ \vec{\nabla}F(x,y,z) = \vec{e}_r…