On a hot day in Qatar, where the temperature is 41°C, a police car driving on the highway, away from Sawsan's car, at a speed of 120 km/h) while operating the siren at a frequency of 2.5 kHz. Sawsan, also, was driving towards the police car at a speed of 100 km/h. What will be the wavelength of the siren Sawsan will hear?