on bearing 055 (55º East of North). The term acceleration can refer to a scalar acceleration or an acceleration vector. So far, we have only met scalar acceleration, eg \(5 m\,s^{-2}\).

A vector can be represented by a line segment labelled with an arrow. A vector between two points A and B is described as: \(\overrightarrow{AB}\), \(\mathbf{a}\) or \(\underline{a}\). The vector ...

THE spinning electron of Uhlenbeck and l Goudsmit has brilliantly filled up a serious gap in atomic physics, but, while we cannot withhold our admiration from its successes, it is only fair to ...

A fundamental goal of physics is to explain the broadest range of phenomena with the fewest underlying principles. Remarkably ...