1.A horizontal force of P=100N is just sufficient to hold the crate from sliding down the plane, and a horizontal force of P=350N is required to just push the crate up the plane. Determine the coefficient of static friction between the plane and the crate, and find the mass of the crate.
2.Mathematically determine the location of a plastic hinge with a uniform load. Please include diagrams/pictures if needed.
3.A flow of 0.1 cum/s flows down in a rectangular channel of width of 0.6m and having and adjustable bottom slope. If chezys constant C is 56, determine the bottom slope necessary for uniform flow with a depth of flow 0.3m. Also find the conveyance of flow.