In the radiation field from an antenna, the electric and magnetic ...

[pepyto]

In the radiation field from an antenna, the electric and magnetic fields are
 
  A)
 
  perpendicular to one another.
  B)
 
  anti-parallel to one another.
  C)
 
  anti-perpendicular to one another.
  D)
 
  parallel to one another.
  E)
 
  never in any geometric arrangement with respect to one another.

Question 2

What is the mean free path of a gas of hard spheres of radius 2.00  10-9 m when the number of spheres per volume is 3.00  1019 m-3?
 
  A)
 
  1.17  10-4 m
  B)
 
  4.00  10-9 m
  C)
 
  9.76  10-5 m
  D)
 
  1.88  10-3 m
  E)
 
  4.69  10-4 m

[bob]

Answer to Question 1

A

Answer to Question 2

E

[pepyto]

Gracias!

[nguyenhoanhat]

TYSM