Yahoo Answers: Answers and Comments for Total energy of a satellite? [Physics]
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From Stephen J
enCA
Sun, 30 May 2010 10:01:42 +0000
3
Yahoo Answers: Answers and Comments for Total energy of a satellite? [Physics]
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https://ca.answers.yahoo.com/question/index?qid=20100530100142AAg34Eq
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From srikant: All satellites without exception have finished...
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Sat, 17 Dec 2016 00:57:31 +0000
All satellites without exception have finished mechanical capability E = KE + PE = KE = a million/2 PE. that's consequence of sostated as virial, which ensures that any physique orbiting in inverse sq. a million/R² rigidity field has ability capability unfavorable two times kinetic capability: PE = 2KE so which you ought to calculate purely the two ability capability or kinetic capability, in spite of is greater uncomplicated for you. for the reason that they gave you orbital velocity v=5km/s, kinetic capability is trivial: KE = a million/2 mv² = +18.seventy 5 GJ answer: finished capability mechanical capability is 18.seventy 5 GJ

From kirchwey: r = re+h = 6878100 m
Specific potential energ...
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https://ca.answers.yahoo.com/question/index?qid=20100530100142AAg34Eq
Sun, 30 May 2010 11:51:38 +0000
r = re+h = 6878100 m
Specific potential energy SPE = GM/r = 57971654.3464038 J/kg
Specific kinetic energy SKE = GM/2r = 28985827.1732019 J/kg
Total specific energy = SPE + SKE = 28985827.1732019 J/kg
Total energy = m(SPE + SKE) = 57971654346.4038 J
Notice the minus sign. Potential energy is zero at infinite distance and negative at finite distance. In a circular orbit, PE = 2*KE so total energy = KE.