Choose all the answers that apply. Which of the following equations are balanced?
2Fe + Cu(NO 3) 2 - 2 Cu + Fe(NO 3) 2
2K + 2H 20 - H2 + 2KOH
OLI+CI 2 - LICI
2H 2 + 0 2 - 2H 20
25 + 30 2 - 250 3

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)

d

explanation: