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1.Given a variable speed centrifugal pump initially pumping 32,000 pounds mass per hour (lbm/hr) at a discharge pressure of 35 pounds per square inch, gauge (psig), calculate the final, stable discharge pressure after the pump speed is raised by 50%. Show all work.
2.Water enters a pipe at 100 psig and 70 degrees F. The density of water under these conditions is 62.3 lbm/ft^3. The pipe has an inside diameter of 4.5 inches. The mass flow rate of the water is measured to be 7500 lbm/hr. What is the fluid velocity in the pipe in feet per second? State all assumptions. Show all of your work.
Suppose X is a continuous random variable with probability density function, f(x)=4x^3 for 0
Write a simple MATLAB program that will estimate the area of a circle using the lower and upper bounds (using triangles). The user will input the diameter of the circle and the desired accuracy (relative error ) and the program must run
The sphygmomanometer is a device used to measure blood pressure. For a healthy person, the diastolic pressure is about 80mmHg (gage). Convert the pressure to mm of blood assuming the specific gravity of mercury and blood are 13.6 and 1.05
An intersection approach has three lanes, permitted left turns, and 6% left-turning volume with a through vehicle equivalent of 5.0 tvu/left turn. The saturation flow rate for through vehicles under prevailing conditions is 1,700 veh/hg/ln.
The wet mass of a sample of saturated soil is 520 grams. The dry mass, after oven-drying, is 400 grams. Determine the a) water content b)void ration c)saturated unit weight, and d)effective unit weight
For determining the centroid of the area, two square segments are considered; square ABCD and square DEFG. What are the coordinates (x, y ) of the centroid of square DEFG?
1. you are working for urs on a building project in dearborn michigan. you are responsible for the design of the
The velocity of a body is given by v(t) = 2t+t3. The body starts from rest at time t = 0 at position s(0) = (2,-10). What are the position and acceleration of the body as functions of time At what time, t, does the body cross the X-axis
The pulleys attached to the shaft are loaded as shown. If the bearings at A and B exert only horizontal and vertical forces on the shaft, determine the required diameter of the shaft to the nearest 1/8 in. using the maximum-shear-stress theory of fa..
What is the change in internal energy of the system? Assume the displacement work in a (fully resisted) constant pressure process is given by (*sub 12 means from stage 1 to 2) Wsub12=p(Vsub2-Vsub1).
Explain CBR method of pavement design with one example.
Determine the % error n in replacing the sine and the tangent of an angle by the value of the angle in radians for angle values 5,10,20 degrees. Explain the qualitative difference between the sine and tangent results.
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