Exercise 1:
On April 15, 1912, the luxury cruiseliner Titanic sank after running into an
iceberg. a) What momentum would the 4.23 X 10%-kg ship have imparted to
the iceberg if it had hit the iceberg head-on with a speed of 11.6 m/s? (Actually,
the impact was a glancing blow.) b) If the captain of the ship had seen the
iceberg a kilometer ahead and had tried to slow down, why would this have
been a futile effort? (Read more about the Titanic at http://www. titanic. com)
a.
b.

Help me plz quick!

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.