Calculate the density of a block of metal with volume of 49.6 cm3 and mass of 84.7g.

Explanation:

Density  =  Mass  ÷  Volume

              =  84.7 g  ÷  49.6 cm³

              =  1.71 g/cm³

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)