I have noticed just in the past couple of years that I get a red splotchy rash on my neck when I drink beer. I thought it might be an allergic reaction, but it doesn't happen all of the time when I drink beer. I have tried switching to a different kind of beer, but I still have random outbreaks of this rash. Answer.
So, if two objects have the same energy $E_k$, they only have the same momentum if they also have the same mass. Since the bull has a much larger mass than the bullet, it must therefore have a much larger momentum than the bullet to arrive at the same kinetic energy. Force is change of momentum with time, $F = \dot p$.
Therefore the atomic mass has almost the same numerical value as the mass number, with only a change of few decimal values. Each number is used for its purposes of convenience depending on the context of use. Difference Between Mass Number and Atomic Mass Definition. The Mass Number is the weight of the nucleus of an atom. The Atomic Mass is the average weight of an element form. Symbol. The Mass Number is written on the upper left-hand corner of an elemental expression. The Atomic Mass is not symbolized as such. Consideration of Isotopes