Achild and a shed with a combined weight of 50.0kg slide down a frictionless hill that is 7.3m high. if the sled starts from the rest, what is its speed at the bottom of the hill answer

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.