Which term defines the amount of mechanical work an engine can do per unit of heat energy it uses? A. specific heat B. conductivity C. thermal expansion D. efficiency

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

magnified images possible images can be real = projected onto a screen

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.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.