code: def calc_mass_from_z0(z0, w0):
      
      T0 = 300
      mFromEquipartition = Boltzmann*T0/(w0**2 * z0**2)
      return mFromEquipartition
docs: Calculates the mass of the particle using the equipartition
      from the angular frequency of the z signal and the average
      amplitude of the z signal in nms.
  
      Parameters
      ----------
      z0 : float
          Physical average amplitude of motion in nms
      w0 : float
          Angular Frequency of z motion
  
      Returns
      -------
      mass : float
          mass in kgs