# physics

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what is the shortest possible time in which a bacterium could drift at a constant speed of 3.5mm/s across a petri dish with a diameter of 8.4cm

• physics -

(8.4 cm)/(0.35 cm/s) = ___ seconds

I don't know why they call it the "shortest" time. It is the required time, if drifting at that speed across the dish along a diameter.

• physics -

24s

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