Arock weighing 2 newtons was lifted 3 meters. how much work was done

The work done to lift the 2 N rock was 6 Joules.

Explanation:

Weight of the Rock = 2 Newtons

So, the force required to lift this rock will be equal to its weight or greater than its weight

Minimum force required to lift the Rock = 2 N

Displacement of the Rock when force was applied = 3 m,

Work Done: It is defined as product of force applied to the object into displacement of the object.

The work done to lift the 2 N rock was 6 Joules.

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.  

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