The Concorde's exterior is made of aluminum, which has a ...

[tfester]

The Concorde's exterior is made of aluminum, which has a coefficient of linear expansion of 24  10-6K-1. At 15C, the Concorde measures 62.1 m in length.
 
  When the plane is in flight, friction with the air increases the temperature of the exterior skin to 200C. What is the change in the length of the outer skin of the Concorde?
  A)
 
  20 cm
 
  B)
 
  24 cm
 
  C)
 
  28 cm
 
  D)
 
  32 cm
 
  E)
 
  36 cm

Question 2

Is it possible for kinetic energy to increase during an inelastic collision? Explain.
 
  What will be an ideal response?

[nguyenhoanhat]

Answer to Question 1

C

Answer to Question 2

Yes, during an inelastic collision potential energy (such as chemical or nuclear) can be released. In which case the total kinetic energy after the interaction can be greater than the initial kinetic energy.

[tfester]

Thanks for the timely response, appreciate it

[dreamfighter72]

Great answer, keep it coming