A sample of aluminum metal has a mass of 8.4 g. The volume of the sample is 3.1 cm3. Calculate
the density of aluminum.

8.4/3.1 =2.709

Explanation: density is mass divided by volume

it's c. elements are placed in rows based on how may valencies electrons have.

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)