If the voltage between the plates of a parallel-plate capacitor ...

[xroflmao]

If the voltage between the plates of a parallel-plate capacitor is doubled, the charge on the capacitor
 
  A)
 
  is tripled.
  B)
 
  is doubled.
  C)
 
  is halved.
  D)
 
  quadruples.
  E)
 
  remains the same.

Question 2

A neutron with a mass of 1.67  10-27 kg traveling east with a kinetic energy of 2.00  10-21 J collides perfectly elastically with a helium nucleus with a mass 6.68  10-27 kg that is initially at rest.
 
  After the collision, the neutron has a kinetic energy 1.80  10-21 J. What angle was the neutron deflected during the collision? A)
 
  142
 
  B)
 
  117
 
  C)
 
  38.0
 
  D)
 
  180
 
  E)
 
  32.8

[Sammyo]

Answer to Question 1

B

Answer to Question 2

A