J. Henry Alston was the first African American to publish his research findings on the perception of heat and cold in a major US psychology journal.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

the answer is a 3.8cm

explanation:

0.55x745.7j and a calculator

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.