Astronomers observe a small moon of a planet and find that its average orbital radius is 5.67 x10^8 m, while its average orbital speed is 2.50 km/s (a) With reference to Kepler's first law of planetary motion, explain why the small moon may not be exactly 5.67 x 10^8 m away from the planet at all times. (b) Find the orbital period of the moon and hence the mass of the planet being orbited by the moon.
Astronomers observe a small moon of a planet and find that its average orbital radius is 5.67 x10^8 m, while its average orbital speed is 2.50 km/s (a) With reference to Kepler's first law of planetary motion, explain why the small moon may not be exactly 5.67 x 10^8 m away from the planet at all times. (b) Find the orbital period of the moon and hence the mass of the planet being orbited by the moon.
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Astronomers observe a small moon of a planet and find that its average orbital radius is 5.67 x10^8 m, while its average orbital speed is 2.50 km/s
(a) With reference to Kepler's first law of planetary motion, explain why the small moon may not be exactly 5.67 x 10^8 m away from the planet at all times.
(b) Find the orbital period of the moon and hence the mass of the planet being orbited by the moon.
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