A 1 kg rock is suspended by a massless string from one end of a 5 m measuring stick. 0 1 2 3 4 5 1 kg What is the mass of the measuring stick if it is balanced by a support force at the 1 m mark

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.