1. A certain number of identical glass marbles has a mass of 825 g. The same number of identical steel marbles has a
mass of 2245 g.
(a) Assigning a glass marble a mass of 1.00 mmu (marble
mass unit), calculate the mass of a single steel marble.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)