You remove the batteries from a working flashlight, turn both of them around as a pair, and reinsert them in the flashlight. they make good contact with the flashlight's terminals at both ends, so that there is no mechanical problem preventing the flashlight from working. if you now switch on the flashlight, it will

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.