The first to be credited with the idea that light is quantized ...

[BrownTown3]

The first to be credited with the idea that light is quantized was
 
  A) Max Planck.
  B) Albert Einstein.
  C) both Planck and Einstein at about the same time.

Question 2

A box is sliding down an incline tilted at a 12.0 angle above horizontal.
 
  The box is initially sliding down the incline at a speed of 1.50 m/s. The coefficient of kinetic friction between the box and the incline is 0.340. How far does the box slide down the incline before coming to rest?
  A) 0.920 m
  B) 2.33 m
  C) 1.78 m
  D) 0.720 m
  E) The box does not stop. It accelerates down the plane.

[sultana.d]

Answer to Question 1

Answer: B

Answer to Question 2

A