1o) A crane at Apraku Timbers uses fuel which rome if its efficiency is 50%, caloulate the work
when bunt producose an energy of 5.0-10
done by the crane in lifting logs:

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.