Posted by Pat on Monday, October 22, 2012 at 4:03pm.
Compute the angular momentum of the earth arising from the following motions.
(a) Earth's orbital motion around the sun.
(b) Earth's rotation on its axis.

Physics  Pat, Monday, October 22, 2012 at 4:08pm
also include the units please. im not sure if i have the right answer because the site tells me my units are wrong, so for all i know i have the right answer but i cant tell

Physics  Elena, Monday, October 22, 2012 at 4:53pm
(a) L1 = M•v•R =
Earth’s mass is M = 5.97•10^24 kg,
R= 1.5•10^11 m (EarthSun)
v=ω•R=2•π•n•R
n=1 rev/year =1/365•24•3600 rev/s
L1 = M•v•R = M•2πn•R²= …(kg•m²/s)
(b)
Earth’s radius is r = 6.378•10^6 m.
n= 1rev/day =1/24•3600 rev/s
L2 = I•ω1= (2•M•r²/5) •2•π•n•r= …(kg•m²/s)

Physics  clouds, Monday, October 22, 2012 at 10:21pm
ok that's correct
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