You and a friend stand 685.8 meters apart. Your friend raises his hand at the same time that he makes a loud noise. You start your stopwatch when his hand goes up and stop it when you hear the sound. What should you read on your stopwatch?

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

cutt.ly/tz3yDpb

0.11 m/s and 0.28 m/s should be correct

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.