An object of mass 1.00 kg is attached to a vertical spring with ...

[Yi-Chen]

An object of mass 1.00 kg is attached to a vertical spring with spring constant 100 N/m. The object is held at rest in a position such that the spring is stretched upward a distance 1.00 cm beyond its undisturbed length.
 
  If the object is released, how far will it drop before coming to rest? A)
 
  2.06 cm
 
  B)
 
  2.00 cm
 
  C)
 
  2.94 cm
 
  D)
 
  3.06 cm
 
  E)
 
  1.94 cm

Question 2

A positive charge Q is located at the center of an imaginary Gaussian cube of sides a. The flux of the electric field through the surface of the cube is . A second, negative charge -Q is placed next to Q inside the cube.
 
  Which of the following statements will be true in this case? A)
 
  The net electric field on the surface of the cube is equal to zero
  B)
 
  The electric field on the surface of the cube is perpendicular to the surface
  C)
 
  The magnitude of the net electric field is constant on the entire surface of the cube
  D)
 
  The net flux through the surface of the cube is equal to zero
  E)
 
  The net flux through the surface is equal to 2

[stano32]

Answer to Question 1

D

Answer to Question 2

D

[Yi-Chen]

TYSM

[raenoj]

Gracias!