a v-shaped channel, build of unplanned timber 0.080 m/ with a velocity of 2.5 m/s. each of the sides makes an angle of 45° with the horizontal. determine the slope if n = 0.014

a v-shaped channel, build of unplanned timber 0.080 m/ with a velocity of 2.5 m/s. each of the sides makes an angle of 45° with the horizontal. determine the slope if n = 0.014 determine the slope with complete solution.

An earth canal containing weeds and grass has a bottom width of 15 ft. and side slopes of 2 horizontal to l vertical. The depth of water is 4 ft. and the slope is 2.75 ft. per mile. It is desired to change the section to a semi-circular concrete-lined channel having a slope of 1.5 ft. in 1,000 ft. Determine the radius of the semi-circular channel in ft if it flows full. Use n = 0.035 for the earth canal and 0.012 for the concrete-lined channel.   Round your answer to 2 decimal places.

A triangular shaped channel is to be designed to carry 700 L/s on a slope of 0.0001. Determine what vertex angle and depth of water over the vertex will be necessary to give a section with minimum perimeter, assuming the channel is made of timber, n = 0.012. Use Manning's formula.