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Physics

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A satellite orbits at an average altitude of h = 409 km. What is its orbital speed? Use REarth = 6370 km and
mEarth = 5.98 x 10^24 kg

  • Physics -

    set centripetal force = gravitational force

    GMm/(r+h)^2=mv^2/(r+h)

    v= 2PI (r+h)/24hrsinSeconds

    change all kilometers to meters. Watch units.

  • Physics -

    can you please explain the v=...part i don't understand what you mean by 24hrsinseconds?

  • Physics -

    is GMm gravity (9.81) multiplied by the mEarth?

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