As shown in the figure below, Luis rushes 40 m toward his truck. He notices he forgot his shoes and returns back to his house. His total travel time is 60 s.
40 m
40 m
What is Luis's average velocity over the 60 s period?

What is Luis's average speed over the 60 s period?

c.the charges if the proton and electron and gravity

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.