A rectangular channel of bottom width 4.0m carries an average discharge Q=3m3/sec. If the Manning’s roughness coefficient is n=0.019 and the average bottom slope of the channel is 0.004(=0.4%=0.2292°), a)determine yn& ycr,
b)classify the slope,
c)find the regime of this flow (Fr),
d)draw the reach by showing these depths.

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor