Скачать или смотреть Applications of Dimensional Analysis (lesson 4)

Here, you will learn how Dimensional Analysis is used to;
check correctness of an equation or formula
to show the relationship between two or more quantities ( i.e to derive an equation)
to obtain the units of QUANTITIES ( for this third one, it is more suitable to use the word ' QUANTITIES', as against the word 'EQUATIONS' used in the video.)
check homogenuity of two or more quantities. ( the word ' homo' means the same. Hence, dimensional analysis can be used to check whether two or more quantities have the same units or dimensions,e.g, stress and pressure, stress and Young's modulus, work and energy, impulse and momentum, etc. Members of each pair have the same dimensions or units)