The turntable of an old record player has two readings: 33 rpm and 45 rpm. Suppose that the rotational acceleration is constant in each of the following cases. You switch the turntable from 33 rpm to 45 rpm, and it takes about 3.5 s for the speed to change. Determine the magnitude of the rotational acceleration of the turntable. Express your answer with the appropriate units.   You switch the turntable from 33 rpm to 45 rpm, and it takes about 3.5 s for the speed to change. Determine the magnitude of the average tangential acceleration of a point on the turntable that is 7.0 cm from the axis of rotation. Express your answer with the appropriate unit

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