Exam 10: Worlds of Gas and Liquid the Giant Planets

If Saturn's rotational period is 11 hours and its radius is 6 × 10⁷ m,what is the average speed of a cloud in its atmosphere that is rotating with Saturn? (Neglect differential speeds due to winds. )

The poles of Uranus can have a higher temperature than its equator because Uranus:

Assume that you discovered a new planet in the Solar System.To study it,you measured the orbital period and semimajor axis of one of its moons and deduced that the planet's mass was 4 × 10²⁵ kg (7 M_Earth),then you observed the planet occult a background star and deduced that its radius is 12,000 km (2 R_Earth).What is this planet's average density? Is this planet's chemical composition more similar to a rocky terrestrial planet or a giant planet? For comparison,the density of iron,rock,and water are approximately 9,000 kg/m³,3,000 kg/m³,and 1,000 kg/m³,respectively.

In addition to the visible light that we can see with our own eyes,Jupiter emits a large amount of radio waves.Explain the processes that allow Jupiter to give off each of these types of light.

Suppose Neptune moves with an average orbital speed of 3.5 km/s.If it takes Neptune four hours to pass directly in front of a star,what is Neptune's diameter? Give Neptune's radius in units of Earth diameters,where the diameter of Earth is 12,800 km.

On which of the giant planets do we think we can find deep oceans of water? Why do we think this,when we can't directly see inside the giant planets?

How does the structure of the solar nebula help explain why Jupiter is so much larger than the other giant planets?

Assume you want to deduce the radius of a planet in our Solar System as it occults a background star when the relative velocity between the planet and the Earth is 30 km/s.If the star crosses through the middle of the planet and disappears for a total of 26 minutes,what is the planet's radius?