(b)
change of volume when the snowball is 12 centimeters in diameter?
The snowball is packed most densely nearest the center. Suppose
that, when it is 12 centimeters in diameter, its density x centimeters
from the center is given by grams per cubic centimeter.
Set up an integral for the total number of grams (mass) of the
snowball then. Do not evaluate.END OF TEST