A 950kg elevator is lifted 15m at 1.0m/s2. calculate the work is done on the elevator

Does anyone have the answers to online physics course plato course physics, semester a v3.0

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

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.