A 345-Kg Centrifuge Takes 100 S to Spin Up from Rest

question 8

Short Answer

A 3.45-kg centrifuge takes 100 s to spin up from rest to its final angular speed with constant angular acceleration.A point located 8.00 cm from the axis of rotation of the centrifuge moves with a speed of 150 m/s when the centrifuge is at full speed.
(a)What is the angular acceleration (in rad/s²)of the centrifuge as it spins up?
(b)How many revolutions does the centrifuge make as it goes from rest to its final angular speed?

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Definitions:

Skin Effect

The tendency of electrons to move toward the outside of a conductor in an AC circuit.

High-frequency

Refers to electromagnetic waves with frequencies much higher than those audible to humans, often associated with radio frequencies and microwave communications.

In Phase

A condition that occurs when voltage and current reach all peak values at the same time.

Out of Phase

A condition where two waveforms of the same frequency are not aligned in time, resulting in a phase difference.