Recent content by Eagle784

Thanks for the suggestion on the design of the truss, that does provide a nice comparison. I began looking into bending moments and shear forces (read the wikipedia articles about them). They seem to talk about determining how much load a beam could withhold; how can I use these concepts to...

I submitted the pdf I attached above, adding only a statement that the same bridge without a truss would have to be able to withstand 1200N at a single point. This is what he wrote back: "In your calculation on page 2, you go through some of the forces acting at different points in the truss...

I only need a simple example, such as perhaps a description of forces on a simple beam bridge with a large weight in the middle, contrasted with how the presence of a truss would spread the forces out. For example, take a beam bridge with 1200N force applied on top of it's center: how...

I'm doing a research paper on bridges, and I'm having trouble finding an example contrasting the magnitudes of forces on a bridge with trusses as opposed to a bridge without trusses. I understand pretty clearly how a truss works, however I need to give an example with numbers, and I'm not...

That's not much easier. First of all, the reverse would be, at least one couple sits as a couple. Second of all, isn't there a way to do this using combinations?

Surely there's an easier way to do this question than the method given? Q: Two couples and one single person are seated at random in a row of five chairs. What is the probability that neither of the couples sits together in adjacent chairs? A: Yes. Let's call the first couple C and c, the...