It鈥檚 estimated that there are a trillion comets in the Oort cloud, which extends out to about 50,000 AU.
What is the total volume of the Oort cloud, in cubic AU? (Hints: For the purpose of this calculation, you can assume the Oort cloud fills the whole sphere out to 50000 AU. The equation for the volume of a sphere is 4/3(pi)(r^3) where r is the radius.)What is the total volume of the Oort cloud, in cubic AU?
Can't you use the formula, with r = 50,000? Windows has a command "calc" that you can use.
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