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## Homework Statement

Calculate the magnitude of the centripetal acceleration at 8.4 cm from the centre of the centrifuge when it is spinning at 6.0x10^4 rpm. Express your answer in terms of g (acceleration due to Earth's gravity.)

## Homework Equations

Ac = v^2 /

r

## The Attempt at a Solution

I know the solution i just dont understand what they are asking from me when they say:

Express your answer in terms of g (acceleration due to Earth's gravity