The minimum amount of energy necessary to eject an electron from ...

[notis]

The minimum amount of energy necessary to eject an electron from a metal surface is referred as Planck's constant.
 
  Indicate whether the statement is true or false

Question 2

A curling stone slides on ice with a speed of 1.70 m/s and collides elastically with an identical, stationary curling stone.
 
  After the collision, the first stone has a velocity of 0.800 m/s in a direction that makes a counterclockwise angle of 61.9 with its original direction of travel. At what speed and what direction is the second stone traveling after the collision?
  A) 1.50 m/s at a clockwise angle of 28.1
  B) 1.40 m/s at a clockwise angle of 19.1
  C) 1.60 m/s at a clockwise angle of 34.2
  D) 1.60 m/s at a clockwise angle of 28.1
  E) 1.40 m/s at a clockwise angle of 32.3

[covalentbond]

Answer to Question 1

FALSE

Answer to Question 2

A

[notis]

Gracias!

[dyrone]

Excellent