Posted by Aaron on Sunday, October 2, 2011 at 9:34pm.
A satellite moves in a circular orbit about our earth exactly four times a day. Find its orbit, radius , speed and weight.

earth  SraJMcGin, Sunday, October 2, 2011 at 9:58pm
Try some of the following links for information:
http://www.google.com/search?q=how+to+find+the+orbit%2C+radius%2C+speed+%26+weight+of+a+satellite+moving+around+our+earth+4+times+a+day+&ie=utf8&oe=utf8&aq=t&rls=org.mozilla:enUS:official&client=firefoxa
Sra

physics  Aaron, Sunday, October 2, 2011 at 10:33pm
A 10.0 kg mass is 1.00m to the left of the origin, and a 20.0 kg mass is 3.00 m to the right of the origin, both on xaxis. Find the gravitational potential energy and the gravitational field on xaxis at a) x =2.0m b.) the origin, c.) x = 4.00 (set Zero P.E @ infinity in terms of G.

earth  tchrwill, Tuesday, October 4, 2011 at 11:17am
The orbital period of any satellite derives from
T = 2(Pi)sqrt(r^3/µ) where T = the period in seconds, 6(3600) = 21,600, r = the orbit radius in seconds and µ = the earth;s gravitational constant.
Therefore,
21600 = 2(3.14)sqrt(r^3/1.407974x10^21)
from which r = 55,002,293 ft. = 10,417 miles.
The velocity derives from V = sqrt(µ/r)
V = sqrt(1.407974x10^21/55,002,293) =
The orbital height and period are totally independant or the weight.
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