Physics An intergalactic spaceship arrives at a distant planet that rotates on its axis with a period of T = 43 hours. The mass of the planet is M = 2.7 • 1025 kg. The spaceship enters a circular orbit with an orbital period that is equal to the planet's period for the rotation about its axis, T. Part a) Write an expression for the radius of the spaceship’s orbit R=? Part b) Calculate the orbital radius in meters

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