# Help 35.14

1. Apr 19, 2009

### krystenm

1. The problem statement, all variables and given/known data
The magnetic field of an electromagnetic wave in a vacuum is B(z) = (3$$\mu$$T) sin(1.00x10^7)x-$$\varpi$$t), where x is in m and t is in s.

2. Relevant equations

w = 2$$\pi$$f

3. The attempt at a solution

I am sorry I am very bad at using this it is my first time... I tried to type up my solution but am having difficultly I am so lost on how to do this any help would be greatly appreciated

2. Apr 20, 2009

### CompuChip

So the magnetic field is given... what is the question?