A fossilized fish skeleton was found in the upper-most rock layer and C-14 was used to date the remains. If 1/16 the original amount of C-14 remains in the skeletons, approximately how old is the fish skeleton? A) 11,400 years
B) 22,800 years
C)45,600 years
D) 91,200 years

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy