A student created a diagram to help to explain why the value on the balance changed as MAGNET 2 was lowered towards MAGNET 1. Magnet 1 was placed on the balance with the NORTH pole facing upwards. Which diagram accurately shows the orientation of magnet 2 as it was lowered? MAGNET 2 MAGNET 2 N S N N MAGNET 1 MAGNET 1 BALANCE BALANCE DIAGRAM A DIAGRAM B​

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.