A self-sustained chain reaction occurs when the reproduction constant, K, is equal to
a. 3.0
b. 2.0
c. 2.5
d. 1.0
e. 0.5
d
You might also like to view...
The six diagrams represent the sky at six different latitudes. Which diagram represents the paths of stars at the North Pole?
What will be an ideal response?
When does a star become a main-sequence star?
A) when the protostar assembles from a molecular cloud B) the instant when hydrogen fusion first begins in the star's core C) when the rate of hydrogen fusion within the star's core is high enough to maintain gravitational equilibrium D) when a star becomes luminous enough to emit thermal radiation E) when hydrogen fusion is occurring throughout a star's interior
What is the proper abbreviation for ‘seconds?'
a. sec b. There is none. It should always be spelled out. c. secs d. s e. none of the above
Of vectors with lengths 5 m, 3 m, and 4 m, which has the greatest magnitude x component?
a. the one with length 5 m c. the one with length 4 m b. the one with length 3 m d. It could be any of the three.