How does the mass of a ball determine how far it will travel? Explain your answer in no less than three sentences.

The bigger the mass the bigger the force you need to push the ball. If there is a ball that have a mass of about 20, youll need 20 or more Net to push the ball. If its a small ball you wont need as much force.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

there are two significant figures.