Centripetal acceleration is expressed as:
, where r is the raids of the test tube and ω is the angular speed.
We're using the equation for centripetal acceleration.
Angular acceleration, ω can be expressed as:
ω = 2πf
A typical laboratory centrifuge rotates at 3800 rpm. Test tubes have to be placed into a centrifuge very carefully because of the very large accelerations.
What is the acceleration at the end of a test tube that is 10 cm from the axis of rotation?
For comparison, what is the magnitude of the acceleration a test tube would experience if dropped from a height of 1.0 m and stopped in a 1.6-ms-long encounter with a hard floor?
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