Thursday
July 31, 2014

Homework Help: Physics

Posted by Sandhya on Friday, April 17, 2009 at 10:51pm.

Cosmic microwave background radiation fills all space with an average energy density of 4 x 10^-14 j/m^3.(a) Find the rms value of electric field associated with this radiation.(b) How far from a 7.5 kW radio transmitter emitting uniformly in all direction would you find a comparable value?

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