Find the required angular speed (in rpm)
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Find the required angular speed (in rpm)

[From: ] [author: ] [Date: 11-12-07] [Hit: ]
400 000*9.81 = ω^2*0.ω^2 = 1.ω = 12 528,f = 1993.f = 1993.......
Find the required angular speed (in rpm) of an ultracentrifuge for the radial acceleration of a point 2.50 cm from the axis to equal 400000g.

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Hello

radial acceleration = ω^2R

400 000*9.81 = ω^2*0.025
ω^2 = 1.5696*10^8
ω = 12 528,36 rad/s

ω = 2pif
f = ω/(2pi)
f = 1993.95 rps
f = 1993.95*60 rpm = 119 637 rpm <-- ans

Regards
1
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