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7 December, 08:34

Bacteria vary in size, but a diameter of 2.0 µm is not unusual. What are the volume (in cubic centimeters) and surface area (in square millimeters) of a spherical bacterium of that size?

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  1. 7 December, 08:37
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    A = 4/pi r^2

    A = 4/pi (2/mu m / 2) ^2 (10^{-6}m/1/mu m) ^2 (1mm/10{-3}) ^2

    A = 1.33*!0^{-5}MM^2
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