Homework Answers
Diameter of a penny = 20 mm = 0.02 m
Thickness of a penny = 1.52mm = 1.52e-3 m
Effective volume occupied = 0.02*0.02*1.52e-3 m^3
number of Pennie = volume of box/volume of a penny
= 0.3048^3/[0.02*0.02*1.52e-3]
= 46573 = about 5*10^3
option c is correct
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