Design a riprap-lined trapezoidal channel that has a capacity of 1000 cfs and slope of 0.0005 ft/ft. Crushed rock is to be used and the channel bottom with is not to exceed 15 ft. Determine the riprap size, the side slopes, and the design depth of flow.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?

Agas is compressed from vi 0.3 m, p 1 bar to of v2 0.1 m3, p2--3 bar. pressure and volume are related linearly during the process. for the gas, find the work, in kj.

A12 mm diameter shaft runs in a plain cylindrical bush 30 mm long that is located in an 18 mm diameter hole in a housing. the shaft-inner bush fit is h8 f and the outer bush-housing fit is h7-p6. make a fully cimensioned sketch of the bush with tolerances. find the maximum and minimum clearance or interference for both fits on the inner and outer diameters of the bush