Aconcrete channel to bring water to crystal lake is being designed. it will have vertical walls and be 15 feet wide. it will be 10 feet deep, have a slope of .0015 feet/foot, and a roughness coefficient of .014. how deep will the water be when 1,000 cubic feet per second is flowing through the channel? to solve this problem, we can use manning’s equation

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.