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9th Class Science Sample Paper Science Olympiad Model Test Paper-1

  • question_answer
    Calculate the speed in km/s of an artificial satellite, which is constantly moving in a circular orbit of radius 42250 km and takes 24 hours to revolve around the earth.

    A)  4.90 km/s                    

    B)  3.07 km/s

    C)  5.10 km/s        

    D)  13.50 km/s

    E)  None of these

    Correct Answer: B

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