1. A radar pulse is sent out and reflects off an airplane. The echo of the pulse return 14.3 us after it was sent out. How far away is the airplane? (ans: 2.15 km) Show work 2. Infrared light had a lower frequency than visible light. What is the frequency of IR light that has a wavelengh of 680 nm? (ans: 4.41 x 1014 Hz) Show work
1. A radar pulse is sent out and reflects off an airplane. The echo of the pulse return 14.3 us after it was sent out. How far away is the airplane? (ans: 2.15 km) Show work 2. Infrared light had a lower frequency than visible light. What is the frequency of IR light that has a wavelengh of 680 nm? (ans: 4.41 x 1014 Hz) Show work
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter17: Sound Waves
Section: Chapter Questions
Problem 17.7CQ: The radar systems used by police to detect speeders air sensitive to the Doppler shift of a pulse of...
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1. A radar pulse is sent out and reflects off an airplane. The echo of the pulse return 14.3 us after it was sent out. How far away is the airplane? (ans: 2.15 km) Show work
2. Infrared light had a lower frequency than visible light. What is the
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