A traffic engineer is checking to make sure the lights at an intersection is safe for drivers. The speed limit on the road is 50 m/s and the width of the intersection is 8m. For an average person reaction time is 1 s and an acceleration of -5 m/s^2 he set the yellow light time for 3 s. Compare the GO zone and STOP zone and decide if the intersection is safe for driver.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.