http://jgdy.org.ru/help-please/ centrifuge,Urine Analyzer,Immune apparatus Wed, 14 Jul 2010 00:27:31 +0000 hourly 1 http://wordpress.org/?v=3.0 http://jgdy.org.ru/help-please/comment-page-1/#comment-4029 Daniel Sat, 27 Feb 2010 18:51:13 +0000 http://jgdy.org.ru/help-please/#comment-4029 Remember this formula for centripetal acceleration: a=v^2/r Acceleration due to gravity is 9.81ms^-2. So: 6.42*10^3*9.81*4.64/100=v^2 v=54.058ms^-1 Circumference of the circle is 2*pi*r = 0.291539798m Therefore, the number of revolutions per second (the frequency) is: f=54.058/0.2915397=185.42 Multiply this by 60 to get RPM: RPM = 11125 so write 1.11*10^4 RPM. I hope this helps :) Remember this formula for centripetal acceleration:
a=v^2/r
Acceleration due to gravity is 9.81ms^-2. So:
6.42*10^3*9.81*4.64/100=v^2
v=54.058ms^-1
Circumference of the circle is 2*pi*r = 0.291539798m
Therefore, the number of revolutions per second (the frequency) is:
f=54.058/0.2915397=185.42
Multiply this by 60 to get RPM:
RPM = 11125 so write 1.11*10^4 RPM.
I hope this helps

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