2. The nearest star to earth is the Proxima Centauri. It is approximately 4.2 lightyears away from our planet. a) Express this distance in km and in the astronomical unit. b) Calculate the time that it will take for this star's light to reach earth.
2. The nearest star to earth is the Proxima Centauri. It is approximately 4.2 lightyears away from our planet. a) Express this distance in km and in the astronomical unit. b) Calculate the time that it will take for this star's light to reach earth.
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
Chapter1: Physics And Measurement
Section: Chapter Questions
Problem 1.29P
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