Recent content by ForgottenMemo

Thanks for the help Marcus, it was most kind.

Im sorry my limited amount of knowleadge, i find it hard to understand even on a good day (It takes me a couple of times, before it all sinks in, esp, when the lecturer is not even good, nor textbooks or websites make it clear). C=\frac{1}{2\pi f I}. => C=\frac{1}{2\pi 50 9.47}. = 3.361*10^-4...

Hello, I re-calculated it and got this for C: C= 1/2 π (50x9.47) = 743.7 -- Using : l=\frac{1}{(2\pi f)^2 c} 1/(2πx50)^2 = 1.013x10^-5 (1.013x10^-5) x C (743.7) = 7.5x10^-3 Which is utterly wrong. I broke it down into chucks thinking tit would help, either way i get...

Thanks for the responce, but I don't undestand why you say check my math, what wrong with it. You've confused me now. -- Also where did those two other equations come from cause my lecturer has not used them, there not the ones i was using? 1/2π fc = 2 π fl --

Homework Statement An AC generator produces a voltage of 230<45º volts. It is connected across an impedance of 17.4<-33º ohms. The supply frequency = 50Hz I got my assignment back and this question wrong, maybe you can guide me, please because I’m not sure entirety. Help is...

Homework Statement An AC generator produces a voltage of 230<45º volts. It is connected across an impedance of 17.4<-33º ohms. The supply frequency = 50Hz I got my assignment back and this question wrong, maybe you can guide me, please because I’m not sure entirety. Help is...

Hootenanny : It was a pleasure. :biggrin: Thanks for the help.

Ok that would mean that. Acceleration / Gravity = The amount of g acting on the vehicle 1.09 m/s^2 / 9.81 = 0.1 (g)

Sorry my mistake i have posting the wrong image its ment to be: I was thinking to my self, iIve been working on that question, with someone from the froums.

Would i be correct in saying that: Acceleration x Gravity = The amount of g acting on the vehicle? 1.09 m/s^2 x 9.81 = 10.69

Homework Statement Homework Equations w = 2PI f v = wr Time = 2PI R/V The Attempt at a Solution w = (2000/PI x 60) x 2PI = 66.66 Radians/Sec V = wr = 66.6 x 300 = 19998 ( Is this velocity of the winding drum) 19998/200 = 99.99 ( Velocity/200 reduction gearbox...

I so hope this is correct. Fc= MV^2/R -> Fc x R/M=V^2 Velocity -> (1100x140)/1000 = 154^2 -> \sqrt{154} = 12.4 (m/s ?) Acceleration -> V^2/R -> 12.4^2/140 -> 1.09 m/s^2 Force Gravity -> M x g -> 1000x9.81 = 9810g

What do you mean. 1) Transpose the equation again or 2) Theres another formula that i have missed If so, any hint on where to look.

Homework Statement Homework Equations Velocity =2PiR/T Time=2PiR/V Force Centripetal = MV^2/R Angular Displacement/Time interval = Average Angular Velocity Angular Velocity x Radius Of Circle Path = Linear Velocity Average Angular Acceleration = Change In Angular...

I require some help please. I know : Rule: T/J = t/r = GΘ/L L = length = 0.33 r = radius = 0.025 D = diameter = 0.5 The starting points and stages would help. I have to hand this in next wednesday, i thought i would ask the community. ------ Determine the distribution of...