Alkyl Halide Reactions. The functional group of alkyl halides is a carbon-halogen bond, the common halogens being fluorine, chlorine, bromine and iodine. With the exception of iodine, these halogens have electronegativities significantly greater than carbon.
Its been said that most car companies make it so where airbags deploy based on the impact. It is said that the airbag will not deploy until the impact generates 7 G's of force. For most vehicles that speed is equivalent to hitting an object at 12 mph or hitting another vehicle at 25 to 30 mph. It is dependent upon the impact of the crash. Source(s): http://www.aa1car.com/library/airbag01.h...
Airbags prevent occupants from hitting parts inside the car and also help cushion the violent movement of the body during an impact. Here's how they work: Sensors in the car detect when an impact has happened. The sensors send a signal indicating sudden deceleration to a computer inside the car. Airbags won't deploy in low-speed crashes in which seatbelts alone should provide enough protection. The computer determines, based on the signal it's getting from the sensor, whether the airbag needs to deploy.