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A rocket is used to place a satellite in orbit about a planet. The velocity of the satellite is
534 m/s and the radius of orbit is 1.21×108
m. What is the mass of planet?

  • physics -

    mv²/R =GmM/R²
    v² =GM/R
    M= v²R/G
    (the gravitational constant
    G =6.67•10⁻¹¹ N•m²/kg²)

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