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physics

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The angular speed of the rotor in a centrifuge decreases from 226 to 186.0 rev/s with an angular deceleration of 6.4 rev/s2. During this period, how many revolutions does the
rotor turn?

  • physics - ,

    N=(n₂²-n₁²)/2a=(186²-226²)/(-2•6.4)=
    =1287.5 rev

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