(a)
The approximate mass of earth keeping in mind that the moon is orbiting around the earth in an average time of 27.3 days with an average distance of 384,000 kilometres.
(b)
The mass of Jupiter keeping in mind that its moon lo orbits around it in 42.5 hours and at the average distance of 422,000 kilometres.
(c)
The orbital distance of the planet orbiting a star has the same mass as that of sun, having an average orbital period of 63 days.
(d)
The combined mass of Pluto and Charon which is the moon of Pluto and takes 6.4 days to orbit around it on a semi-major axis of 19,700 kilometres.
(e)
The orbital period of the spacecraft in orbit 300 kilometres above Earth’s surface.
(f)
The approximate mass of Milky Way Galaxy knowing the fact that the sun orbits the galactic centre in 230 years at a distance of 27,000 light years.

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Chapter 4 Solutions
ESSENTIAL COSMIC PERSPECTIVE BUNDLE
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