Stopwatch 2 Review
Safety Prec
ary
11. MAIN(idea Identify a wave that speeds up when it passes from air
to water as well as one that slows down.
distance between a
Procedure

a displacement distance is size of displ

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.