21.  In a paper submitted to Physical Review Letters E, Christensen and Peters argue that this mathematical similarity to earthquakes suggests a physical one.

22.  In recent cases, judges in Germany and Italy have declared that national boundaries do indeed apply to the virtual world as well as the physical one.

23.  In dealing with impotence, couples should consider more variables than just the physical ones, she said.

24.  In retrospect it is odd that they were convinced a genius of such voracious intellectual appetites would not have physical ones as well.

25.  It is more a virtual organization than a physical one.

26.  McLane is all bottom line, and the fiscal bottom line outweighs the physical one for him.

27.  Strickland is the physical one.

28.  The role is largely a physical one, and Rourke is no slouch in that department, thanks to years of training as a boxer.

29.  The switch from Ella to Cruella is a physical one.

30.  There were physical ones and mental ones.