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An earth satellite moves in a circular orbit at a speed of 4500 m/s. What is its orbital period? Express your answer in hours

An earth satellite moves in a circular orbit at a speed of 4500 m/s. What is its orbital period? Express your answer in hours to two significant figures. VE ? hr The dwarf planet Praamzius is estimated to have a diameter of about 300 km and orbits the sun at a distance of 6.2 x 102 m. What is its orbital period in years? Express your answer in years to three significant figures. T= 17 ? years

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