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Old June 23, 2008, 09:56 PM   #6
Dave Haven
Senior Member
Join Date: February 1, 2000
Location: near Flagstaff, AZ
Posts: 790
Sectional density = mass/dia^2; and mass of a round ball is proportional to dia^3, therefore, sectional density of a round ball is directly proportional to ball diameter. A larger ball has a higher sectional density.
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