Radius of the orbit of Geo statimary satellite of mass m is r, If mass of the earth is M and theradius is R, the total energy of the satellite at the orbit is,
Question
Radius of the orbit of Geo statimary satellite of mass m is r, If mass of the earth is M and theradius is R, the total energy of the satellite at the orbit is,
Solution
The total energy of a satellite in orbit is given by the formula:
E = -GMm/2r
Where: E is the total energy of the satellite, G is the gravitational constant, M is the mass of the Earth, m is the mass of the satellite, and r is the radius of the orbit.
The radius of the orbit for a geostationary satellite is given by:
r = (GMt^2/4π^2)^(1/3)
Where: t is the period of the satellite (which is 24 hours for a geostationary satellite).
Substituting the second equation into the first gives the total energy of a geostationary satellite in terms of G, M, m, and t:
E = -GMm/2((GMt^2/4π^2)^(1/3))
This simplifies to:
E = -GMm/(2^(4/3)(GMt^2/4π^2)^(1/3))
This is the total energy of a geostationary satellite in orbit around the Earth.
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