If Billy weighs 120N on earth, how much will he weigh on the moon

73.98 kg

Explanation:

The acceleration due to gravity on the moon is equal to: 1.622 m/~s^2 .  

F=ma

120 N = mass x 1.622

mass = 120/1.622  = 73.98 kg

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.