Two satellites are in circular orbits around a planet that has radius 9.00×106 m. one satellite has mass 68.0 kg, orbital radius 8.00×107 m , and orbital speed 4800 m/s. the second satellite has mass 84.0 kg and orbital radius 7.00×107
what is the orbital speed of this second satellite?

v₂ = 5131.42 m/s

Explanation:

given,

radius of the planet = r₁ = 9.00×10⁶ m

mass of the satellite = m₁ = 68 Kg

orbital radius = r₁ = 8 x 10⁷ m

orbital speed = v₁ = 4800 m/s

mass of second satellite = m₂ =  84.0 kg

orbital radius = r₂ = 7.00×10⁷ m

orbital speed of second satellite = v₂ = ?

using orbital speed of satellite

     so,

now,

                v₂ = 5131.42 m/s

The orbital speed of second satellite is equal to v₂ = 5131.42 m/s

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b.transmitters send radio waves, and receivers capture radio waves.