Which branch of science studies how sound waves move through the air? A. Life science
B. Physical science
C. Space science
D. Earth science

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

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.

What are the necessary conditions for fusion?