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25 April, 03:25

A centrifuge accelerates uniformly from rest to 13000 rpm in 220 s. through how many revolutions did it turn in this time?

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  1. 25 April, 05:56
    0
    We have the following angular velocity:

    w = 13000 rpm

    We are going to convert to revolutions per second.

    We have then:

    w = 13000 * (1/60)

    w = 216.6666667 rev / sec

    We now multiply the angular velocity by time:

    (216.6666667) * (220)

    = 47666.66667 rev

    Rounding:

    47667 rev

    Answer:

    it did turn about 47667 rev in this time
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