Answered: (b) How long does it take sunlight to…

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter6: Waves And Sound

Section: Chapter Questions

Problem 9E: How far does light travel in 1 year? [This distance, known as a light-year (ly), is used in...

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(a) The distance to a star is approximately 6.74 ✕ 10¹⁸ m. If this star were to burn out today, in how many years would we see it disappear?
___ years

(b) How long does it take sunlight to reach Earth?
____ minutes

(c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 ✕ 10⁵ km.)
______ s

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