This is important i need to turn this in tomorrow, how many half-lives does it take to get from 1,000 to 125, and in what region of virginia would you find young and old rivers. you in advance!

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.

Abowling ball rolls 32 meters in 0.8 seconds what is the average speed in m/s of the bowling ball in m/s

Asign is hung between two cables as illustrated below. if the sign weighs 350 n, what is the tension (in n) in each cable?