Rusty is a forensic investigator examining the crime scene of a homicide. The medical examiner has determined that the victim died of a gunshot wound. However, there are no bullets or cartridge casings found at the scene. What type of evidence might show striations that might lead to a specific weapon?

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .