Two elements, and , combine to form two binary compounds. in the first compound, 28.0 g of combines with 3.00 g of . in the second compound, 7.00 g of combines with 4.50 g of . show that these data are in accord with the law of multiple proportions. if the formula of the second compound is , what is the formula of the first compound?

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)