posted by taryn .
A 2.10 m diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.90 µV/m.
(a) What is the intensity of this wave?
(b) What is the power received by the antenna?
(c) If the orbiting satellite broadcasts uniformly over an area of 1.50 x 10^13 m2 (a large fraction of North America), how much power does it radiate?