Identify each of the statements as being either TRUE or FALSE. The unit of pressure, the Pascal is dimensionally the same as newton/meter.
A. True
B. False
Young's modulus is defined as the ratio of stress to strain, consequently it can be expressed in the same units as stress.
A. True
B. False

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.