What causes the object that moves along a surface to slow down and eventually stop​

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

the right answer is c i just did the question.

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.