3. Biologists often study the patterns of migratory birds by using radar (1-10 GHz electromag- netic waves) to track their flight. To check whether radar waves influence the birds' flight, researchers tracked the birds visually, both with the radar on and with it off. The 9 GHz radar waves had an intensity of 400 W/m² at 250 m. What was the amplitude of the electric field at this distance? (The experiments showed that the radar did not affect the birds.)

3. Biologists often study the patterns of migratory birds by using radar (1-10 GHz electromag- netic waves) to track their flight. To check whether radar waves influence the birds' flight, researchers tracked the birds visually, both with the radar on and with it off. The 9 GHz radar waves had an intensity of 400 W/m² at 250 m. What was the amplitude of the electric field at this distance? (The experiments showed that the radar did not affect the birds.)

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 35PE: A 2.50-m-diameter university communications satellite dish receives TV signals that have a maximum...

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