A 50 kg skater pushes off from a wall with a force of 200 N. What is the skater's acceleration?

How does convection affect our atmosphere? our layers of earth? our oceans?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

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.