You are moving at a speed 2/3 c toward Randy when shines a light ...

[burchfield96]

You are moving at a speed 2/3 c toward Randy when shines a light toward you. At what speed do you see the light approaching you?
 
  A) 2/3 c B) 4/3 c C) c D) 1/3 c

Question 2

The coefficient of linear expansion of copper is 17  10-6 K-1. A block of copper 30 cm wide, 45 cm long, and 10 cm thick is heated from 0C to 100C What is the change in the volume of the block?
 
  A) 2.3  10-5 m3
  B) 6.9  10-5 m3
  C) 5.2  10-5 m3
  D) 4.6  10-5 m3
  E) 14  10-5 m3

[quynhmickitran]

Answer to Question 1

C

Answer to Question 2

B

[burchfield96]

Thank you!

[quynhmickitran]

Always glad to help...