1.What is the velocity of the object here at: A. Time= 20s B. Time=30s. 2. What would the velocity of the object be at time = 50s?

What happens in a global convection cell

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.

How many neutrons does plutonium -196 with an atomic number of 78.