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physics question Chege x C physics question IChegg x C physics question Chege x C physics questionIChege x C physics question l Chegg x x Wiley PLUS C edugen.wileyplus.com/edugen/student/mainfr.uni Gradebook ORION Home Read, Study & Practice Assignment Assignment Open Assignment ONEXTD FULL SCREEN PRINTER VERSION HBACK ASSIGNMENT RESOURCES Chapter 09, Problem 109 Homework 9 Fall 2015 M Chapter 09 Concept (a) How far is the center of mass of the Earth-Moon system from the center of Earth? (Mass of Earth is 5.98 x 10 24 kg, mass of Moon is 7.36 x 1022 kg distance between Earth and 01 Moon is 3.82 x 105 km, Earth's radius is 6.37 x 103 km.) b) What percentage of Earth's radius is that distance? M Chapter 09 Concept 06 09, Prob 001 (a) Number Units 09, Prob 002 b) Number Units 09, Prob 004 09, Prob 015 SHOW SOLUTION 09, Prob 102 hapter 09, Problem 109 Question Attempts: 0 of 6 used SAVE FOR LATER SUBMIT ANSWER Review Results by Study object Copyright C 2000-2015 by John Wiley & Sons, Inc. or related companies. All rights reserved License Agreement l Privacy Policy I G 2000-2015 John Wiley & Sons Inc. All Rights Reserved. A Division of John Wiley Sons Inc. Version 4.16.1.7 Ask me anything 10/25/2015

Explanation / Answer

m1 = 5.98*10^24 kg = 598*10^22 kg

m2 =7.36*10^22 kg

x1 =0, x2 = 3.82*10^5 km

Re = 6.37*10^3 km

Part (a):

Center of mass Xcm= (m1x1+m2x2)/(m1+m2)

Xcm = [0 + (7.36*1022)(3.82*105)]/(598*1022+7.36*1022)

Xcm = 0.046*105 km

Xcm = 4.6*103 km

(b) Part (b)

(Xcm/Re)*100% = (4.6*103/6.37*103)*100%

= 72.2%

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