Planet X has a mass 1/4 of earth and a radius 1/2 of earth. a) What...
Planet X has a mass 1/4 of earth and a radius 1/2 of earth.
a) What is the acceleration of gravity on the surface of Planet X?
b) How long will it take a moon of Planet X to orbit it at a radius of 3Rx?
c) If a second moon of Planet X orbits at the same distance as the first moon, what's the second moon's time period?
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Planet X has a mass 1/4 of earth and a radius 1/2 of earth.
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An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1960 x 103 seconds (about 23 days) on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 295.0 x 106 m and the planet has a radius of 3.70 x 10% m, calculate the moon's radial acceleration a.
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Planet X has 20 times the mass of the earth and 3 times the earth's radius. It orbits star Y at a distance of 8 AU, where 1 AU is the earth-sun distance. Star Y has twice the mass of our sun. (a) What is the orbital period of Planet X in years? (b) An astronaut has an earth weight of 120 lbs. What is her weight on the surface of planet X?
An undiscovered planet
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