(d) How long does it take for a radio wave to travel once around the Earth in a great circle, close to the planet's surface? s (e) How long does it take for light to reach you from a lightning stroke 9.8 km away? s
(d) How long does it take for a radio wave to travel once around the Earth in a great circle, close to the planet's surface? s (e) How long does it take for light to reach you from a lightning stroke 9.8 km away? s
Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 98AP: A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of...
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From College Physics, 10th Edition
(d) How long does it take for a radio wave to travel once around the Earth in a great circle, close to the planet's surface?
s
(e) How long does it take for light to reach you from a lightning stroke 9.8 km away?
s
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