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29 Cards in this Set
- Front
- Back
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thin hoop about symmetry axis
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MR2
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thin hoop about diamter
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1/2 MR2
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point mass about axis
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MR2
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disk or cylinder about symmetry axis
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1/2 MR2
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thin rod about perpendicular axis through center
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1/12 Ml2
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thin rod about perpendicular axis through end
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1/3 Ml2
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solid sphere about diameter
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2/5 MR2
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thin spherical shell about diamter
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2/3 MR2
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second condition of equilibrium
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torque=f1d1-f2d2-f3d3
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newton's second law for rotation
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net torque=moment of inertia X angular acceleration
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angular momentum
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L=Iw
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machine's mechanical advantage
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MA=output force/input force
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efficiency
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eff=Wout/Win
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revs to radian conversion
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1rev=2pirad
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theta
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theta=s/r
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conversion from angle in radian to angle in degrees
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theta(rad=(pi/180) x theta(degree)
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angular displacement
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angular displacement=change in arc length/distance from axis
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angular speed
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average angular speed=angular displacement/time interval
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angular acceleration
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average angular acceleration= change in angular speed/
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wf=
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wf=wi+(angular acceleration)(t)
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angular displacement
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wit + 1/2(angular acceleration)(t2)
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wf2
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wf2=wi2+ 2(angular acceleration)(angular displacement)
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angular displacement
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angular displacement=1/2(wi+wf)(t)
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tangential speed
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distance from axis X angular speed
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tangential acceleration
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tangential acceleration=distance from axis X angular acceleration
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force that maintains circular motion
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Fc=mass X (tangential speed)2/distance to axis
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force that maintains circular motion
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Fc=mass X distance to axis X (angular speed)2
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gravitational force
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Fg=G(m1m2)/r2
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Gravitational constant
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G=6.673X10-11
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