Consider a flat steel plate with a hole through its center. When ...

[fnuegbu]

Consider a flat steel plate with a hole through its center. When the plate's temperature is decreased, the hole will
 
  A) contract only if it takes up more than half the plate's surface area.
  B) expand if it takes up less than half the plate's surface area.
  C) contract.
  D) expand.

Question 2

How high does a bullet travel after leaving the barrel of a rifle at 225. m/s with an angle of 66. above the horizontal? Also what is its range (ignore air friction)?
 
  What will be an ideal response?

[Jayson]

Answer to Question 1

C

Answer to Question 2

2.2 km height and 3.8 km range

[fnuegbu]

Thanks for the timely response, appreciate it

[gcook]

Excellent