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6 January, 19:54

How many 1-cm-diameter ball bearings can be made using 5.24 cm3 of molten steel?

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  1. 6 January, 20:18
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    D = 1 - - > r = 0.5

    V=4/3•pi•r^3 = 4/3•3.14• (.5) ^3 = 0.52

    5.24 / 0.52 = 10.01

    So you can make 10 ball bearings out of that amount of steel.
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