Abook is falling from the top shelf of a bookcase. which statement correctly describes the change in the energy of the book?
a. the potential energy and kinetic energy remain the same.
b. the potential energy decreases as kinetic energy increases.
c. the kinetic energy decreases as potential energy increases
d. the kinetic energy remains at zero, but potential energy increases.

Listenbase your answer to the question on the information below. nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body. cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment. which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61