Atrapezoidal channel with a sluice gate has the following characteristics: flow rate q = 25 m3/s; channel bottom slope s0 = 0.001 m/m; channel bottom width b = 10 m, the side slopes are 2h to 1v, and manning’s roughness coefficient n = 0.013. the sluice gate exists across the long, straight channel. the gate has an opening of 0.2948 m (assuming this is the depth of flow passing through the gate). the elevation (z) of channel bottom at the gate site is 0.0.sluice gate 10 +4y upstream n sl 10 m 0.2948 m. downstream1) compute (a) critical depth and (b) normal depth (c) determine if the channel bottom slope is steep, mild or critical; 2) determine (a) if the flow upstream of the gate is chocked and (b) the water depth on the upstream side of the gate section (assuming no energy loss through the gate); 3 )construct excel spreadsheet for standard step method:

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?

Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.