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(II) A light-year is the distance light travels in one

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli ISBN: 9780130606204 3

Solution for problem 22P Chapter 1

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

Physics: Principles with Applications | 6th Edition

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Problem 22P

(II) A light-year is the distance light travels in one year (at speed = 2.998 X 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 X 108 km How many AU are there in 1.00 light-year?

Step-by-Step Solution:

Solution: 22P

Step 1 of 3</p>

(A) Speed of light C = 2.998 x 108 m/s

Hence 1 light year = ( 2.998x108 m/s)(3.156 x 107 s)

1.00 light year = 9.46 x 1015 m

Therefore 1.00 light year = 9.46 x 1015         (The least number of significant figures is 3 as given

in 1.00 light year, so the answer should have maximum 3 significant figures)

Step 2 of 3</p>

(B) 1AU = 1.5 x 108 km

= 1.5 x 108 x 1000 m                 (As 1 km = 1000 m)

= 1.5 x 1011m 

Hence 1.00 light year = 6.31 x 104 AU

Step 3 of 3

Chapter 1, Problem 22P is Solved
Textbook: Physics: Principles with Applications
Edition: 6
Author: Douglas C. Giancoli
ISBN: 9780130606204

The full step-by-step solution to problem: 22P from chapter: 1 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. The answer to “(II) A light-year is the distance light travels in one year (at speed = 2.998 X 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 X 108 km How many AU are there in 1.00 light-year?” is broken down into a number of easy to follow steps, and 52 words. This full solution covers the following key subjects: light, distance, meters, EARTH, average. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. Since the solution to 22P from 1 chapter was answered, more than 438 students have viewed the full step-by-step answer.

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