Dimensional analysis can be used in problems other than áuid mechanics ones. the important variables a§ecting the period of a vibrating beam (usually designated as t and with dimensions of time) are the beam length l, area moment of inertia i, modulus of elasticity e, material density , and the beam cross-sectional area, so that t = fcn(l; i; e; ; a) recall that the modulus of elasticity has typical units of n/m2 . (a) find a dimensionless version of the functional relationship. (b) if e and i must always appear together (meaning that e