It is defined as l / k where l is the length of the column and k is the radius of gyration, the latter defined by k ^ 2 = I / A where A is the area of the cross-section of the column and I is the second moment of area of the cross-section.
32.
The surface of the ball is required to include markings to indicate the manufacturer's brand name, the name of the ball, the center of gravity ( before drilling ), the orientation of the core ( the Pin ), and the axes of the high and / or low radius of gyration ( as applicable ).
33.
Where " r " = radius of gyration of [ column ] cross-section which is equal to the square root of ( I / A ), " K " = ratio of the longest half sine wave to the actual column length, and " KL " = effective length ( length of an equivalent hinged-hinged column ).
34.
In the past, only overall particle parameters ( e . g . volume, radius of gyration ) of the macromolecules were directly determined from the experimental data, whereas the analysis in terms of three-dimensional models was limited to simple geometrical bodies ( e . g . ellipsoids, cylinders, etc . ) or was performed on an ad hoc trial-and-error basis.
35.
Since the work done by the external force is split between overcoming the translational and rotational inertia, the external force results in a smaller net force by the dimensionless multiplicative factor 1 / \ left ( 1 + \ tfrac { I } { mr ^ 2 } \ right ) where \ tfrac { I } { mr ^ 2 } represents the ratio of the aforesaid virtual mass to the object actual mass and it is equal to \ left ( \ tfrac { r _ \ text { gyr . } } { r } \ right ) ^ 2 where r _ \ text { gyr . } is the radius of gyration corresponding to the object rotational inertia in pure rotation ( not the rotational inertia in pure rolling ).
