Use the density equation to solve the problems.
equation: density = mass/volume or d = m/v
a 10.0 cm3 sample of copper has a mass of 89.6 g. what is the density of copper?

explanation:

detials on each model with digrams

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)