The problem: You and your engineering crew are in charge of setting up a wireless telephone network for a village in a mountainous region. The transmitting antenna of one station is an electric dipole antenna located atop a mountain 2.00 km above sea level. There is a nearby mountain that is 7 km away and is also 2.00 km above sea level. At that location, one member of the crew measures the intensity of the signal to be 4E-12 W/m2. What should be the intensity of the signal at the village that is located at sea level and 1.50 km from the transmitter? Relevant Equations: I=P/(4πr2) Attempt at a Solution: I decided to use the intensity measured on the opposite mountain to calculate the power of the antenna, and then use that answer to find the sea level intensity. 4*10-12=P/(4π70002) P=0.00246 W For sea level intensity: r2=20002+15002 by Pythagorean theorem I=0.00246/(4π(20002+15002)) Using this method, I got 3.136E-11 W/m2, which is apparently wrong. That's the only way I can think of to do the problem, so I'm stuck.