An infinitely long cylinder of radius R = 2 cm carries a uniform ...

[Diane]

An infinitely long cylinder of radius R = 2 cm carries a uniform charge density  = 18 C/ m3. Calculate the electric field at distance r = 1 cm from the axis of the cylinder.
 
  A)
 
  2.5  103 N/C
  B)
 
  5.1  103 N/C
  C)
 
  0
  D)
 
  2.0  103 N/C
  E)
 
  10.2  103 N/C

Question 2

In a nuclear plant, 1017 J of energy is available from mass conversion. How much mass was lost?
 
  A)
 
  0.1 kg
  B)
 
  1 kg
  C)
 
  10 kg
  D)
 
  100 kg
  E)
 
  1000 kg

[welcom1000]

Answer to Question 1

E

Answer to Question 2

B

[Diane]

Gracias!

[juliaf]

Excellent