edugen.wlleyplus com PHYS 2A Homework PLUS Cutnell, Physics, 10e HeiR System Ann

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edugen.wlleyplus com PHYS 2A Homework PLUS Cutnell, Physics, 10e HeiR System Announcements Unread) Grace Period: 13 days left I Register Now Chapter 03, Problem 11 zo Interactve solution a model for solving this The around the in a nearly crcular orbt of radius 1.sox 1011 m. During the three 62 summer months (an elapsed time of 7.89 x 10° the earth moves one-fourth of the around the sun. (a) What is the average speed or the earth? (b) What is the of the average velocity of the earth during this distance period? 03 (a) Number 82 (b) Number roblem 4u Click if you would like to show work for this question: open Show work Question Attempts Unlimited SAVE FOR LATER SU HrTAASwrR copyright c 2000-2017 by John Waey B Sons, inc or related companies. rights reserved

Explanation / Answer

here,

radius , r = 1.5 * 10^11 m

time , t = 7.89 * 10^6 s

a)

for average speed , v = (2 * pi * r /4) /( t)

v = ( 2 * pi * 1.5 * 10^11 /4) /( 7.89 * 10^6)

v = 2.98 * 10^4 m/s

the average speed is 2.98 * 10^4 m/s

b)

for average velocity , v = (1.41 * r) /( t)

v = ( 1.41 * 1.5 * 10^11) /( 7.89 * 10^6)

v = 2.68 * 10^4 m/s

the average velocity is 2.68 * 10^4 m/s

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