1) Basic notions. Introduction to statics of structures; main hypotheses of linear theory; types of loads; structures, structural members and connections; equilibrium of forces; P1. Graphic statics ...

The equilibrium of fluids was ascribed by Pascal to the principle of virtual velocities above mentioned. This principle or law of nature has been thus enunciated: “Forces in equilibrium must be ...

The Hardy-Weinberg equilibrium can be disturbed by a number of forces, including mutations, natural selection, nonrandom mating, genetic drift, and gene flow. For instance, mutations disrupt the ...

The study of forces and moments on structures, frames, and machine parts including the equilibrium of force systems in two and three dimensions, centroids, moments of inertia, friction, and shear and ...