Suppose you are located 180 m from a radio transmitter. (a) How many wavelengths are you from the transmitter if the station calls
itself 1150 AM? (The AM band frequencies are in kilohertz.) (b)
What If? What if this station is 98.1 FM? (The FM band frequencies
are in megahertz.)

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.