Does this equation show that transmutation has taken place during decay? Why or why not? 61/28 Ni = 61/28 Ni+y A. Yes, because the numbers of nucleons and atoms are conserved. B. No, because high-energy electromagnetic waves are emitted. C. No, because there is conservation of the number of atoms as well as the number of nucleons. D. Yes, because nickel atoms remain nickel atoms with the same number of neutrons.​

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.