Separate the pennies you have into two groups: one group with pennies dated before 1982 and the other with pennies dated after 1982. compare the two groups. record any similarities or differences in size or appearance that you notice between the two groups.

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)

i dont know the answe