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The sketch shows a common consumer product called Water Pik. This device uses a motor to drive a piston pump that produces a jet of water (diameter d = 3 mm, temperature T = 10 °C) with a speed of 25 m/s. Estimate the minimum electric power in watts that is required by the device. Hints: (a) Assume that the power is used only to produce the kinetic energy of the water in the jet; and (b) in a time interval ?t, the amount of mass that flows out the nozzle is ?m, and the corresponding amount of kinetic energy is (?mV2/2).
Define and discuss the various factors that help decide the number and depth of bore holes needed for subsoil exploration. What is 'N-value' of Standard Penetration Test? How do
Surface Drainage: Surface drainage deals with arrangement for quickly leading the water from rainfall away from the surface of pavements, shoulders, slopes of embankments and
Tensile stresses It has been possible to introduce tensile stresses of upto 850 N/mm 2 in tendons with the use of this method. But the method is not suited in situations where
Explain Horizontal Circular Curves - Transportation Horizontal circular curve is a circular arc between two straight lines known as tangents.
I am a civil engineer and interested to teach.Is there any vacancy?
Overtaking Sight Distance: Overtaking sight distance is calculated on the assumption that the overtaking vehicle (i) travels behind the overtaken vehicle to perceive the clear
A simply-supported beam (AB) with an overhang (BC) is illustrated in Figure 1(a), with the cross-sectional details given in Figure 1(b). The dead load comprises self weight only; f
Define Seismic Isolation Bearings - Bridge Bearing? Many bridges had been built before the proper seismic design specifications were known to us. These bridges require strengt
I need to find support reactions at O for the beam with a distributed load, a 6 kN moment couple at A and a 3 kN axial load as shown in picture.
Q. Show the Earth pressure on abutment? The magnitude of earth pressure coefficient in calculating the earth pressure on bridge abutment reliesconsiderably on the degree of res
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