The basic difference between the special and general theories of ...

[beccaep]

The basic difference between the special and general theories of relativity is that
 
  A) the first deals with electricity and the second with magnetism.
  B) the first deals with nonaccelerated observers and the second deals with accelerated observers.
  C) the first assumes that the observers are at rest and the second allows the observers to move.
  D) the first deals only with accelerated observers and the second deals with nonaccelerated observers.
  E) actually there is no important difference between them.

Question 2

A hockey puck slides off the edge of a horizontal platform with an initial velocity of 20 m/s horizontally. The effects of air are negligible. The height of the platform above the ground is 2.0 m.
 
  What is the magnitude of the vertical component of the velocity of the puck just before it hits the ground? A) 20 m/s
  B) 6.3 m/s
  C) 13 m/s
  D) 15 m/s
  E) 21 m/s

[mk6555]

Answer to Question 1

B

Answer to Question 2

B

[beccaep]

Gracias!

[Dinolord]

Excellent