Posted by **Liz** on Wednesday, October 3, 2012 at 10:36pm.

Centrifuges are commonly used in biological laboratories for the isolation and maintenance of cell preparations. For cell separation, assume centrifugation conditions that are 1.00 x 103 rpm using an 8.16-cm-radius rotor. What is the radial acceleration of material in the centrifuge under these conditions? Express your answer as a multiple of g. Do not enter unit.

- Physics -
**Jennifer**, Thursday, October 4, 2012 at 11:57am
1.00 * 103 rpm is a unit of angular velocity.

a = w^2 * r, where a is radial acceleration, and w is angular velocity, and r is the radius

You need to express your answer as a multiple of g, which is in units of m/s^2

Convert w = 1.00 * 103 rpm to rps (rotations per minute to rotations per second)

convert r = 8.16 cm to m

plug these numbers into the equation to get the acceleration, divide by g (9.8 m/s^2) to get answer

- Physics -
**Matthew**, Wednesday, September 25, 2013 at 10:26pm
In reply to Jennifer, her explanation is CLOSE to be correct. Instead of converting rpm to rps, convert it to rad/s and use that as the velocity. To do this, multiply the rpm by 2π and then divide by 60. Use that and the radius in the formula then divide by 9.8 and you got it!

## Answer this Question

## Related Questions

- st.louse - My task is to research the application of centrifuges for medical, ...
- Physics - A centrifuge rotor rotating at 10700 rpm is shut off and is eventually...
- physics - A centrifuge rotor rotating at 7,000 rpm is shut off and is eventually...
- Chemistry - The following galvanic cell at standard conditions has a potential ...
- Chemistry - The following galvanic cell at standard conditions has a potential ...
- Chemistry - Explain with reference to the Nernst equation, how is it possible ...
- phy - A centrifuge rotor rotating at 13,000 rpm is shut off and is eventually ...
- algebra - The size of a certain cell is 2.5 × 10–9 m. Another cell is 1.5 × 103 ...
- Chemistry - A voltaic cell utilizes the following reaction: 2Fe3+(aq)+H2(g)&#...
- medicine - What is the main difference between a stem cell and a cancer cell? A...

More Related Questions