Recent content by asteg123

Homework Statement 1. A 4MVA, 13.3kV, 60Hz, 3 phase, delta-connected alternator has an effective resistance of 5.2 ohm/phase and a combined armature reactance of 54 ohm/phase. Determine the full-load generated voltage per phase, a. At unity pf, b. at 0.8 pf lagging, and at 0.866 leading pf...

I'm really stomped with this problem... i can't seem to get the answer... anyway... here's the problem.. (2(x^3) - (y^3))y'=3(x^2)y and i need to get the general solution... SO, here's what i did... I Let u=x^3 and du=3x^2dx so what happens is 2udy-(y^3)dy= ydu and...

Hmm... in letter C, you are asked to get the x & y components... so once you got the components... get the magnitude by V=sqrt(Vx^2+Vy^2) to get the angle, just get the inverse tangent of the quotient of the y-component and x-component because tanθ=Vy/Vx

The force F has a moment equal to 250N.m with respect to point O -400N.m with respect to point B and has a zero moment with respect to point A. http://freewebs.com/mcroldan08/prob.jpg Find the magnitude of F and the x-intercept. OK, here's what I did, Using the formula for moment...

what have you done so far??

hmm... true... I guess I will use the Gravitational force... THANKS!

Uhmm... is the gravitational force the constant of GM earth?? Is there any other way of solving this other than this method... coz we still haven't discussed GM yet... I think the method is somewhat involving frequency.. I'm not really sure...

Ok, so far, I had answers to number 3 & 4, However, I'm not sure if they're right... Here's what i did, on number 3, I made an FBD and here it is... http://freewebs.com/mcroldan08/problem2.jpg Can anyone verify this... This is my equation Letting the angle be A the Summation...

So far, I had only done number 4, but i am not very sure of what i did... I had made a FBD of this and it showed a vector at a certain angle (WRT the y-axis) and towards the right... this vector represents the Normal force... there is also a vector downwards, and it is W=mg and from there...

1. When the radius and mass are held constant, what do you expect to happen to the centripetal force if the frequency of rotation is increased? 2. What will happen if a rotating platform was set up slightly off the horizontal? Would anything change? What in particular? 3. A ball rotates in...

They are? CooL... heheheh Thanks for the welcome... ^^

QUESTION: If a 60kg package rests on a level floor with coefficients of static and kinetic frictions 0.56 and 0.37 respectively, what horizontal force is required to start the package's motion? how much force is needed to slide the package across the floor at constant velocity? using the...