What do the different colour heart emojis mean? Does a red , yellow , green , blue and violet emoji all mean the same thing according to you? Solitude4
1 The relative atomic mass, or atomic weight, of an element is the weighted average of the masses of the isotopes in the naturally occurring element relative to the mass of an atom of the carbon-12 isotope which is taken to be exactly 12.
Yet the Earth does in fact weight something. As you point out the weight of the Earth is calculated by the formula w = mg (weight = mass x the acceleration of gravity). We can determine the mass of the earth, all we then need to know what the relative acceleration of gravity of the planet is.