Questions
Two identical satellites are at R and 7 R away from earth surface, the wrong statement is (R = Radius of earth)
a
Ratio of total energy will be 4
b
Ratio of kinetic energies will be 4
c
Ratio of potential energies will be 4
d
Ratio of total energy will be 4 but ratio of potential and kinetic energies will be 2
detailed solution
Correct option is D
Orbital radius of satellites, r1=R+R=2R r2=R+7R=8RU1=−GMmr1 and U2=−GMmr2K1=GMm2r1 and K2=GMm2r2E1=GMm2r1 and E2=GMm2r2∴ U1U2=K1K2=E1E2=4Talk to our academic expert!
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A satellite moves around the earth in a circular orbit of radius r with speed v. If the mass of the satellite is M, its total energy is
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