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Design a rectangular channel contraction from width b1 (upstream) to width b2 (downstream). Assume uniform flow approaches the contraction (i.e. normal depth approaching the channel contraction).Given:Flow rate = Q = 50,000 cfsUpstream width = b1 = 100 ftDownstream width = b2 = 75 ftManning's roughness coefficient = n = 0.012Invert slope = S0 = 0.005
A jet aircraft is flying in a standard atmosphere at an altitude of 4,000 m at 900 km/hr. The frontal intake area of the jet engine is 0.80 m2. The engine exhaust area is 0.56 m2. The temperature of the exhaust gas is 120°C.
DISCUSS THE LIMITATION AND PROBLEM OF EXTRAPOLATING MECHANICAL PROPERTIES MEASURED ON A SMALL ROCK SAMPLE TO FIELD SITUATIONS.
The three hinged arch is composed of segments of a circle. Support points A and D are not at the same level.Determine: (a) the horizontal and vertical components of reaction at A and D.
A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum-size shovel that will excavate 400,000 bcy of common earth in a minimum of 130 working days of 8 hr each.
Assuming that silt is equivalent to a liquid having a density of 1760 kg/m3, determine the overturning moment of silt and water about point A.
A 1045 steel will be heat treated in air at 900 C. What is the carbon concentration at 0.4 mm below the surface after 6 hours
An open rectangular tank contains water up to about half its depth. this tank accerlerates at a=2.2m/s2 up a slope of alpha, which causes the free water surface to form an angle theta with the horizontal plane. what is angle aplha of the slope
Employing the ideal gas model with constant specific heat ratio k, determine the temperature at the end of the process and the amounts of work and the heat transfer per unit mass in Btu/lb
Springs AB and CD have a stiffness of k = 300 N/m and k' = 200 N/m, respectively, and both springs have an unstretched length of 600 mm. If the 2-kg smooth collar starts from rest when the springs are unstretched
make an inline function g(x)= x+ cos(x^5). plot it using vectors x= -5:.1:5; and y= g(x);. what is wrong with this graph. find a way to make it look more like the graph of g(x) should turn in both plots.
The driver of a car traveling up a 2% grade at an initial speed Vo applied the brakes abruptly and the vehicles slid to a complete stop at an average deceleration of 8 ft/s^2. Was the pavement wet or dry
The bar is confined to move along the vertical and inclined planes. The velocity of the roller at A is Va=5.2 ft/s when theta=40 . a)Determine the bar's angular velocity when theta=40. b)Determine the velocity of roller when theta=40.
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