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

def calc_mass_from_z0(z0, w0):
    """
    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
    """
    T0 = 300
    mFromEquipartition = Boltzmann*T0/(w0**2 * z0**2)
    return mFromEquipartition