Answer the following questions:a. Air lows past an object and exits as a free jet as shown in the figure. Because of the obstruction,the exit velocity is non-uniform with magnitude of 4 m/s from r = 0 to r=0.5 m and 12 m/s fromr = 0.5 m/s to r = 1.0 m. It is initially calculated that the average velocity is 10 m/s, using adifferential area, dA=2rrdr, what is the value of the momentum correction factor, B?2-m-dia.aAirWake 1-m dia.Exit-4 m/s-12 m/sb. A hydraulic turbine has 85 m of head available at a flow rate of 250 L/s. If the fluid is water andthe turbine's overall efficiency is 78%, what is the mechanical power, in kW, it extracts from thewater?

Given Data: Ve=4 m/s for 0≤r≤0.5 mVe=12 m/s for 0.5 m≤r≤1 mVavg=10 m/s To Find: Momentum…

a. Air lows past an object and exits as a free jet as shown in the figure. Because of the obstruction, the exit velocity is non-uniform with magnitude of 4 m/s from r = 0 to r = 0.5 m and 12 m/s from r = 0.5 m/s to r = 1.0 m. It is initially calculated that the average velocity is 10 m/s, using a differential area, dA=2πrdr, what is the value of the momentum correction factor, B? Air 2-m-dia. Wake 1-m dia. Exit- -4 m/s 1-12 m/s b. A hydraulic turbine has 85 m of head available at a flow rate of 250 L/s. If the fluid is water and the turbine's overall efficiency is 78%, what is the mechanical power, in kW, it extracts from the water?

a. Air lows past an object and exits as a free jet as shown in the figure. Because of the obstruction, the exit velocity is non-uniform with magnitude of 4 m/s from r = 0 to r = 0.5 m and 12 m/s from r = 0.5 m/s to r = 1.0 m. It is initially calculated that the average velocity is 10 m/s, using a differential area, dA=2πrdr, what is the value of the momentum correction factor, B? Air 2-m-dia. Wake 1-m dia. Exit- -4 m/s 1-12 m/s b. A hydraulic turbine has 85 m of head available at a flow rate of 250 L/s. If the fluid is water and the turbine's overall efficiency is 78%, what is the mechanical power, in kW, it extracts from the water?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Air lows past an object and exits as a free jet as shown in the figure. Because of the obstruction, the exit velocity is non-uniform with magnitude of 4 m/s from r = 0 to r = 0.5 m and 12 m/s from r = 0.5 m/s to r = 1.0 m. It is initially calculated that the average velocity is 10 m/s, Using a differential area, dA = 2rdr, what is the value of the kinetic energy correction factor, a? Air -4 m/s 2-m-dia. Wake 1-m dia. -12 m/s Exit Answer:
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