Comets are generally made of a mix of rock, water ice, and frozen gases like methane or carbon dioxide. They start their travels inwards towards Sun from the edges of the solar system in a region of space called the Oort cloud, traveling on average at about 42m/ by the time they reach the same distance that the Earth is from the Sun. Suppose that a comet of diameter 20m lined up just right to strike the Earth in one of its oceans.(a) Comets aren't made from water ice or iron but are a complicated mix of things, with average densities of that of ice cream. Rocky road ice cream has an average density of 137 grams per metric cup ( 1 metric cup is 150m ). Find the density of rocky road in /m3.