Which of the following is an incorrect conversion unit for magnesium oxide, MgO? 1)

6.02 x 1023 g / 1 mol

2)

1 mol/ 40.3 g

3)

40.3 g / 1mol

4)

1 mol/ 6.02 x 1023 form. un.

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)