In astronomy, the term perihelion refers to the point in the orbit of an asteroid, comet, or planet at which it is closest to the sun. aphelion refers to the point at which the object is furthest away from the sun. research facts about the dwarf planet ceres. calculate the average orbital speed of ceres in miles/hour when it is closest to the sun and when it is farthest away.

Orbital speed is given by the formula:

Mass of Ceres, M =

The closest distance of Ceres to sun is : 382,620,000,000 m

orbital speed of Ceres at perihelion is:

The farthest distance of Ceres to sun is : 382,620,000,000 m

orbital speed of Ceres at aphelion is: 414,010,000,000 m

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

c. heat from the poles back down towards the equator.