Subtracting a vector is the same as adding a negative version of the vector (remember that making a vector negative means reversing its direction). \(\left( \begin{array}{l} a\\ b \end{array} ...

“We proved the existence of a new class of quantum materials that are both metallic and one-dimensional magnets, with strong ...

Scalar and vector quantities are treated differently in calculations. Motion - Edexcel The movement of objects can be described using motion graphs and numerical values. These are both used to ...