The big bang is thought to have occurred about
A) 14 trillion years ago.
B) 14 million years ago.
C) 5000 years ago.
D) a million years ago.
E) 14 billion years ago.
Question 2
A 25-kg piece of equipment can be hung by steel wires of length 1.00 m, 2.00 m, or 3.00 m. If all the wires have the same diameter, which one will stretch the greatest percent?
A) the 3.00-m wire B) the 1.00-m wire
C) the 2.00-m wire D) They will all stretch by the same percent.