1.While leaving the movie theatre after a great show your friend comments on how

1.While leaving the movie
theatre after a great show your friend comments on how cold it is outside and
asks you if you have any idea how cold it actually is. You know that you are
standing 70.0 m away from the high exterior walls of the theatre. You clap your
hands loudly and hear the echo of your clap 0.43 s later; you were timing this with
an extremely accurate stopwatch. Calculate the temperature and impress your
curious friend. 2.A research historian is
interested in finding sunken treasure in the Atlantic Ocean. She knows that her
equipment is only good enough to recover items that are at a depth of 5 000 m
or less. The speed of sound through the water is 1 530 m/s. While working the sonar equipment detects a
reflection that is of interest. The echo
from the item takes 6.2 s to return to the sonar detector. Will she be able to
retrieve this item?