A graph resembling that of cos(x) is presented in which x is the vert. axis and t is the horizontal axis. Assume that the x coordinate of point R is 0.12 , and the t coordinate of point K is 0.0050. So . . . R = (0 , 0.12 m) K = (.005 s ,0) What is the period T of oscillations? I know that a*T = .005 s, where T is the period and a is the fraction of a full wavelength covered over this interval. What is a so I can get T? Thanks for any hints.