A traffic engineer is checking to make sure the light at an intersection is safe for drivers. The speed limit on the road is 30m/s and the width of the intersection is 8m. For an average person reaction time of 1 s and an acceleration of -5m/s^2 he sets the yellow light time at 3 s. Compare the GO zone and the STOP zone and decide if the intersection is safe for drivers

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?