usain bolt is wicked fast. in fact he is the fastest human in the world and ran at a crazy 10.1 m/s in the olympic games. what is his mass if he has 9,890 j of kinetic energy in the race

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?