A rectangular channel made of unfinished concrete, 10ft wide, conveys a flow of 40 cfs. The bed slope of the channel is 7 x 10-3. Estimate the following: (1.1) Critical depth (1.2) Uniform depth (1.3) If the flow depth at one location is 0.9 ft, estimate the flow depth 100 ft downstream (horizontal) in the channel if friction and head loss can be neglected. (1.4) Repeat (1.3) if the upstream depth is 0.3 ft. (1.5) Create a specific energy diagram with the computer for this flow/channel, and illustrate cases (1.3) and (1.4) on the diagram. Label the critical depth, super-/sub-critical limbs, and the upstream/downstream depths for each case. (1.6) If there was head loss between upstream and downstream for the above questions (1.3 and 1.4), would this raise or lower the downstream depths that you estimated in those questions