In terms of thermal expansion it is important that A) a key ...

[cookcarl]

In terms of thermal expansion it is important that
 
  A) a key and its lock are made of similar or the same material.
  B) the fillings in your teeth expand at the same rate as teeth.
  C) iron rods and concrete in which they're embedded expand equally.
  D) all of the above
  E) none of the above

Question 2

If the specific heat capacity of water were lower than it is, a nice hot bath would be a
 
  A) shorter experience.
  B) longer experience.
  C) same regardless of water's specific heat capacity.

[TheDev123]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: A

[cookcarl]

Thank you!

[TheDev123]

Always glad to help...