Acar moved at a speed of 50 kilometers/hour. its kinetic energy is 400 joules. if the same car moves at a speed of 100 kilometers/hour

If the car moves at a speed of 50 kilometers an hour and produces 400 joules of kinetic energy then if you twice that speed which is 100 kilometers an hour then you will produce 800 joules of electricity.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.