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.)
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Physics, 22.06.2019 06:40, miaglory3828
Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?
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Physics, 22.06.2019 12:30, lanaasad7733
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Water at 70°f flows by gravity from a large reservoir at a high elevation to a smaller one through a...
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