Physics
7th Edition
ISBN: 9780321625915
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 1, Problem 19P
A light-year is the distance light travels in one year (at speed=2.998×108 m/s).(a) How many meters are there in 1.00 light-year? (b) An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50×108 km. How many AU are there in 1.00 light-year?
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