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Old Jun 27th 2010, 03:02 AM   #1
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Join Date: Jun 2010
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Exclamation mangetic and electric field, optics and escape velocity questions




I don't really understand these questions... Is there anyone who could tell me HOW to solve them? I don't ask about ONLY answers, I just want to understand how to solve these types of exercises.

The things I know:
1. the centrifugal force = the gravitational force
Fg=GmM/r^2
Fc=?

2. the potential =0 (+1 and -1)

5.

and

L>>|SM|, so r~12
sin ~ 0.007
so d*0.007= 1*633

ok but how many interference maxima can be observed?? is there an equation for that?

3. B inside = 0 because it's a sphere...
4 - I have no idea how to do this o.O

Last edited by Leilaila; Jun 27th 2010 at 02:11 PM.
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