The diagram below shows a boy with his positions above the trampoline Which best describes the energy the boy has at position 3 just before gravity begins to pull him back down?

A)applied
B)Kinetic
C)Mechanical
D)potential

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.