You can take this information on amplitude and period for the vibrating spring in peric motion and "write" a mathematical expression that will represent the graph that you d drew in y 1, part 1. the general mathematical expression for the motion of the vibrating m e angular frequency (velocity) is: x(t) a and φ is the phase shift. the angular frequency is also equal to 2㎡ (where f is the frequency). thus, for an amplitude of.15 m and a frequency of .9 hz, the mathematical expression would be x(t) = .15 sin (5.65 t + φ) m. sin (ot+ φ), where a is the amplitude, ω is th for the data you took in activity two, write a mathematically expression for the periodic motion of vibrating mass: and ω so x (t) this mathematically expression can be called the wave function for this periodi c motion.