A speeder tries to explain to the police that the yellowwarning lights on the side of the road looked green to her becauseof the Doppler shift. How fast would she have been traveling ifyellow light of wavelength 574 nm hadbeen shifted to green with a wavelength of 554 nm? (Note that, for speeds less than0.03c, Equation 21.32 will lead to a value for the change offrequency accurate to approximately two significant digits.Accordingly, please enter your response to 2 significantdigits.)