Correction for the weight of a Basketball
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How heavy is 454.960 pennyweights?
It's about one-and-one-tenth times as heavy as a Basketball
The weight of a Basketball is about 401.04166667 pennyweights.
(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 401.04166667 pennyweights. These balls have 4,118 pebbles each with a diameter of 2.5 mm