In a medical lab, you put blood in tubes in a centrifuge to separate the plasma from the formed elements (platelets, red blood cells, and white blood cells). The centrifuge you have goes from rest to 20,000 rpm in 4.0 s. What is the final angular velocity of the centrifuge? What is the angular acceleration of the centrifuge? How many rotations does the centrifuge go through while it accelerates?

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