Water flows at a rate of 5 m3/s in a rectangular channel width of 10 m. The normal depth of flow in the channel is 5 m. If a sharp crested (suppressed) weir of height 5 m is installed across the channel, determine the new flow depth in the channel for the same flow rate. What would the flow depth be if the rectangular weir were contracted (on both sides) to a width if 7 m? What would the flow depth be if a 7 m wide Cippoletti weir is used?

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Time and time related variables in engineering

Time is the event progression starting from past to present and then, future statistically. The time-related variable is any particular value in relation to time to assess its changes on a specified (XY) plane.