Recent content by sf2k

Not sure. It's confusing since it looks like at C the pole is compressing upwards and outwards since the force it at an angle upwards at 40N and outwards at 48N. So I'll guess the component at B(y) of (1.2)(40)sin45 up and B(x) of 48N to match C(x).

Here's the ladder problem with image attached. Also another problem with just image. (Solve for moment at B). Oddly the ladder prob is more complex but the second problem shows I don't really know the process. I don't know what is is about Moment that I keep forgetting. I think we can...

Homework Statement Working through 5.17 problem in Bedford 5th edition (Engineering Statics) p214 "The hydraulic piston AB exerts a 2000 N force on the ladder at B in the direction parallel to the piston. Determine the weight of the ladder and the reactions at C." piston between A and B on...

yes thank you. I"m sorry if I'm not clear. I know that both the current and the magnetic field are in the same plane but 90 degrees apart while the force is perpendicular 90 degrees to their plane. like x,y, and z. however the magnetic pump needs two such magnetic fields and not one. With...

First off thanks for the link and a very nice reply! Ok, so in one case the first magnetic field has a Lorentz force vertically down and the other Lorentz force is in the plane of direction to move the molten sodium. Where I'm not following is why there needs to be two fields to move the...

I'm confused how a magnetic pump works as described in my text. I'll quote: """Liquid metals, such as the molten sodium used in certain nuclear reactors, can be moved through pipes using an electromagnetic pump that has no moving parts. If the metal has to be moved in a pipe that is...