A thin sheet of gold is called “gold leaf.” If a 200.- mg piece of gold is hammered into a rectangular
sheet with dimension 2.4 ft × 1.0 ft, what is the
average thickness of the sheet in meters? The
density of gold is 19.32 g/cm3

. (1 inch = 2.54 cm)

for points guys

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)