Recent content by GSXR1000

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    Belts & Friction: 25 ld-ft Torque, 6 in. Drum, 0.30 µ

    Ok I have realized that the motor produces torque M and ΣM about G =0, T2*r-T1*r=0 (See attachment in post #1 for FB) If you set M=T2*r-T2*r this will be when incipient slipping of the belt is about to occur. Using this with T1=T2*e^(µß) we have two equations and two unknowns. Solve for the...
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    Belts & Friction: 25 ld-ft Torque, 6 in. Drum, 0.30 µ

    I think that my assumption that force of friction (Ff ) is equal to µdN is wrong. I am not sure how to determine what dN is in this problem. If anybody has suggestions it would be greatly appreciated.
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    High School Does the piston ever stop moving in a running engine?

    Unless the lower rotor blower puller is out of balance the piston can never have instantaneous velocity. Unfortunately there is no such thing as a naturally aspirated internal combustion engine that can run with the lower rotor blower pulley out of balance thus….. the piston must stop moving at...
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    High School Does the piston ever stop moving in a running engine?

    I am pretty sure that it is not move at TDC and BDC and I am pretty sure that that is when acceleration is at a max. This is probably why there is so much confusion about this one. Also, the acceleration is o when velocity is at a max which would be approximately mid stroke. So my answer is YES...
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    Belts & Friction: 25 ld-ft Torque, 6 in. Drum, 0.30 µ

    Homework Statement A flat belt is used to transmit the 25 ld-ft torque developed by an electric motor. the drum in contact with the belt has a diameter of 6 in., and the coefficient of static friction between the belt and the drum is 0.30. Determine the minimum allowable value of the tension...
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    Trig questions. Which ones are true.

    a: pi/2 is just the phase shift. Will pi/2 make them out of phase? b: with no variable (Theta) plug and chug in the calculator unless you teacher wants you to prove? c: does does x+x=2x? d: when Theta =? or maybe I should say will it for any Theta.
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    Trig questions. Which ones are true.

    If you have a graphing calculator you can graph both equation to verify they are equal.