Now, take the mass (320 mg) and convert it to grams (g) so that you have equal units on both sides of the equation. Next, divide the converted mass by the density, and cancel out the grams due to division. You should have your volume, in cubic centimeters.
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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