Ceres, the largest asteroid in our solar system and one of the five dwarf planet

Question

Ceres, the largest asteroid in our solar system and one of the five dwarf planets, is a spherical body with a mass 6000 times less than the earth’s, and a radius which is 13 times smaller where an Earth’s mass = 5.97 ×1024 kg Our astronaut is in a circular orbit with a period of 1.0 hour. How large is the orbit? (hint: use newton’s version of kepler’s 3rd law). Use centripetal foce and Newton’s law of gravity to find out the orbital speed of our astronaut. Mass of astronaut in suit 75kg mass of spaceship = 2500kg

Explanation / Answer

At certain latitudes, clouds and the weather tend to move to the east, but at other latitudes they tend to move to the west. Heat travels on average from hotter areas to colder areas. Theequator is hotter than the poles, so, on average, hotter air travels from the equatorial region to the poles, and colder air travels from the poles to the equatorial region, so there is a north-south component to the prevailing winds.

Planets rotate around their axis, which generates Coriolis forces that make air traveling north or south deviate from its straight course. This causes the motion of the air (and the weather) to have an east-west component as well.

The direction of motion of the air and the weather varies with time, with latitude on the planet, and also with height. The exact details depend on properties of the atmosphere, on how fast theplanet rotates, and on the amount of sunlight that the planet receives (i.e., on the distance from the Sun and on the seasons), and cannot be easily predicted without the use of a computer model.

If you want to know more, then please ask a meteorologist.

The earth-like planets are made of rock and metal, which contains elements such as oxygen, silicon, iron, and nickel. The jupiter-like planets are made up mostly of hydrogen and helium gas. They may also have a rocky core far below the layers of gas, and that core is then probably made of similar elements as the earth-like planets. However, we don't know for sure yet if these Jovian planets even have a rocky core and what the composition of such a core is, because no space craft has ever gone below the uppermost cloud layers to take measurements there.

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