# physics

posted by
**lindsey**
.

You are designing a centrifuge to spin at a rate of 13,880 rev/min.

(a) Calculate the maximum centripetal acceleration that a test-tube sample held in the centrifuge arm 14.6 cm from the rotation axis must withstand.

(b) It takes 1 min, 17 s for the centrifuge to spin up to its maximum rate of revolution from rest. Calculate the magnitude of the tangential acceleration of the centrifuge while it is spinning up, assuming that the tangential acceleration is constant.