Achemist prepares a solution of copper(ii) fluoride by measuring out of copper(ii) fluoride into a volumetric flask and filling the flask to the mark with water. calculate the concentration in of the chemist's copper(ii) fluoride solution. be sure your answer has the correct number of significant digits.

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.

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(jacemorris04)