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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).
What are the basic assumptions in Boussinesq's theory of stress distribution in soils? Illustrate the vertical stress distribution on a horizontal plane at a given depth and also t
curing of brick masonry
Pavement Layers And Their Functions Flexible Pavement A typical modern flexible pavement for high traffic is composed of layers as under (Figure). Figure: L
Question What are major ways to undertake negative skin friction ? Answer (i) Utilize slender pile sections since smaller pile area when subject to same working load
i want to just understand civil eng main points of all subjects which i becam able to tell some body about this tha what is this ?
an increase in consumer income will affect the supply of any given product
Traffic Surveys: The following traffic surveys are needed for preparing a good road project: Classified Volume Counts This survey is normally carried out for 7 days,
30,000-yd 3 of banked soil from a borrow pit is stockpiled before being trucked to the jobsite. The soil has 28% swell and shrinkage of 18%. The final volume of the compacted so
M/i=e/r=f/y
determine the cross section of a rectangular beam of uniformly strength for a simply supported beam of 6m span subjected to central concentrated load of 20kN a)by keeping depth of
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