A soccer ball was kicked. It had the mass of 0.42 kg and accelerated at 25m/s². What was the force?

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

from the question we have

force = 0.42 × 25

We have the final answer as

Hope this helps you

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.