![subject](/tpl/images/cats/User.png)
Engineering, 31.07.2019 00:10 austin8535
Afarmer is to pump water at 70°f from a river to a water storage tank nearby using a 125-ft-long, 5-in-diameter plastic pipe with three flanged 90° smooth bends. the water velocity near the river surface is 6 ft/s, and the pipe inlet is placed in the river normal to the flow direction of water to take advantage of the dynamic pressure. the elevation difference between the river and the free surface of the tank is 12 ft. for a flow rate of 1.5 ft3/s and an overall pump efficiency of 69 percent, determine the required electric power input to the pump. the density and dynamic viscosity of water at 70°f are ρ = 62.30 lbm/ft3 and μ = 2.360 lbm/ft·h = 6.556 × 10–4 lbm/ft·s. the roughness of a galvanized iron pipe is ε = 0.0005 ft. the required electric power input to the pump is kw.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
Answers: 2
You know the right answer?
Afarmer is to pump water at 70°f from a river to a water storage tank nearby using a 125-ft-long, 5-...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2021 22:30
![question](/tpl/images/cats/health.png)
Health, 15.12.2021 22:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2021 22:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2021 22:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2021 22:30
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2021 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2021 22:30
![question](/tpl/images/cats/en.png)
English, 15.12.2021 22:30
![question](/tpl/images/cats/fizika.png)
Physics, 15.12.2021 22:30
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 15.12.2021 22:30