Demonstrate from planetary data that the speeds of out orbiters are lower then inner orbiters.
Answer:
This can be described by Kepler's second law of planetary motion which states: "A line from the planet to the Sun sweeps out equal area in equal times. Farther the planet from the sun, less will be its rotational speed and nearer the planet to the sun, higher will be its rotational speed." That is why, inner planets or inner orbiters have higher rotational speeds than their outer counterparts. The speed of the planets are given below in the table.
Planets | Rotational Speed Around Sun |
Mercury | 47.87 km/s |
Venus | 35.02 km/s |
Earth | 29.78 km/s |
Mars | 24.077 km/s |
Jupiter | 13.07 km/s |
Saturn | 9.69 km/s |
Uranus | 6.81 km/s |
Neptune | 5.43 km/s |
Demonstrate from planetary data that the speeds of out orbiters are lower then inner orbiters.
The composition of planetary atmospheres is determined in part by the speeds of the molecules of the constituent gases because the faster moving molecules can reach escape velocity and leave the planet (often called Jeans escape, named after British astronomer Sir James Jeans). The major constituents of earth’s atmosphere (air) are nitrogen, oxygen, argon, carbon dioxide, dihydrogen monoxide, neon, helium, methane, krypton and hydrogen gases. In general, the earth is too large to lose a significant proportion of its atmosphere...
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