Water at 70°f flows by gravity from a large reservoir at a high elevation to a smaller one through a 66-ft-long, 2-in-diameter cast iron piping system that includes four standard flanged elbows, a well-rounded entrance, a sharp-edged exit, and a fully open gate valve. taking the free surface of the lower reservoir as the reference level, determine the elevation z1 of the higher reservoir for a flow rate of 10 ft3/min. the density and dynamic viscosity of water at 70°f are rho = 62.30 lbm/ft3 and μ = 2.360 lbm/ft·h = 6.556 × 10–4 lbm/ft·s. the roughness of cast iron pipe is ε = 0.00085 ft.(round the final answer to one decimal place.)
Answers: 1
Physics, 21.06.2019 22:20
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
Physics, 22.06.2019 09:00
What is a possible result of higher air temperature caused by global warming
Answers: 1
Physics, 22.06.2019 15:50
Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air
Answers: 3
Physics, 22.06.2019 17:40
Which component of the earth’s atmosphere is decreased due to photosynthesis?
Answers: 1
Water at 70°f flows by gravity from a large reservoir at a high elevation to a smaller one through a...
Mathematics, 09.03.2021 04:40
Mathematics, 09.03.2021 04:40
Mathematics, 09.03.2021 04:40
Chemistry, 09.03.2021 04:40
English, 09.03.2021 04:40
English, 09.03.2021 04:40
Mathematics, 09.03.2021 04:40
Social Studies, 09.03.2021 04:40