Question: Earth is 1 AU from the sun, on average due to its almost circular orbit. The sun has a mass of 1.9891 10 30 kg.

  1. Earth is 1 AU from the sun, on average due to its almost circular orbit. The sun has a mass of 1.9891 ×1030 kg.
    1. Calculate the speed of Earth Show your work. 
    2. Calculate the orbital period of Earth. Show your work.

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