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, $F = \dot p$.
It would be misleading to talk about molecular mass of a salt because salts (ionic compounds) are not molecules. The concept of âformula massâ is a formalism that recognizes that salts are not molecules. The formula mass is calculated from the simplest formula of an ionic compound just like the molar mass is calculated from the molecular formula of a covalent compound: by adding up the atomic masses of all the atoms in the formula.