need chem help i've got this formula but i can't figure out how to plug these numbers in.can someone help me?

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need chem help i've got this formula but i can't figure out how to plug these numbers in.can someone help me?

A protocol calls for the homogenate to be centrifuged at 16,000 x g for 20 minutes. If the rotor has an average r value of 6 cm, at what rpm must you set the centrifuge? You may use a nomogram or equation to determine the answer

2007-09-27 15:10:12 · 1 answers · asked by Jon P 1 in Science & Mathematics ➔ Chemistry

please can someone help?.. i really need help with this??.. thanks

2007-09-27 15:27:52 · update #1

1 answers

Actually this is a physics problem.
the centrifugation acceleration is: v^2/r = w^2*r
Now we have 16000g = 16000*9.81 = w^2*(0.06)
w = sqrt(16000*9.81/0.06) = 1617.4/s = 257 round/s ≈ 15.5k rpm

2007-09-30 16:22:52 · answer #1 · answered by Hahaha 7 · 0⤊ 0⤋