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A rectangular channel with b 4 m has a change in slope such that the normal depths are y01 = 0.93 m and y02 = 1.42 m. At locations far upstream and far downstream of the transition, flow occurs at the respective uniform depths that serve as controls. The discharge is 15 m3 /s. Find the variation of the water surface and energy grade line throughout the region.
an enclosure box surrounds some electronics that draw 25 w of electrical power. for heat transfer we will just consider
a capillary tube has an 8 mm diameter through which liquid fluorine refrigerant r-11 flows at a rate of 0.03 cm3s. the
consider a low speed one-circuit wind tunnel with an inlet to throat ratio of 12. the pressure difference between the
a hydraulic power generation turbine-generator plant is installed at a site 200 m below the free surface of a large
Find the area of a semi-circle truncated at one end (on the flat side) by a length l. Express the area in terms of the radius R and l -- you can define additional variables in terms of R and l for neatness. Find the area with the hatched lines (the l..
a turbine accepts superheated steam at 800 psia and 1200 degree f and ejects it as saturated vapor with a pressure of
Daily sales records for a computer manufacturing firm show that it will sell 0,1, or 2 mainframe computer systems with probabilities as listed. Find the probability mass function for X, the number of sales in a two-day period, assuming that sales are..
Two long copper rods of diameter D = 10 mm are soldered together end to end, with solder having a melt- ing point of 650°C. The rods are in air at 25°C with a convection coefficient of 10 W/m2 · K. What is the minimum power input needed to effect ..
Consider a Refrigerant 22 at 0oC that is going through a phase change from the saturated liquid to saturated vapor. Using T-dS equations, calculate the entropy change between these two phases.
How much energy storage capacity would Scotland need to satisfy all its electricity needs with renewable generation and provide a stable grid
a steam power plant implements an ideal reheat rankine cycle. steam enters the inlet of the high-pressure turbine at 8
you have tested bearings for a particular machine. this resulted in a mean of 40570000 cycles with a standard deviation
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