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Specify the radius in mm to the centerline of a 90 degree bend in a 1 in type k copper tube to acheive the minimum energy loss. For such a bend carrying 250 L/min of water at 80'C, compute the energy loss. Compare the results with problem 10.41 problem 10.41 A 1 in type k copper tube supplies hot water 80 C to a washing system in a factory at a flow rate of 250L/min. At several points in the system a 90 degree bend is required. Compute the energy loss in each bench if the radius outside of the bend is 300mm
A 6.22-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.45 m/s and its y component of velocity is -2.88 m/s. (a) What is the kinetic energy of the object at this time
An air compressor is used to pressurize a cylindrical tank which contains air at atmospheric pressure. The tank's diameter is 3 ft and it is 5 ft long. The supply line is 1 inch in diameter.
A multiple-piston hydraulic jack has two output pistons, each with an area of 250 cm^2. The input piston, whose area is 25 cm^2, is concerned to a lever that has a mechanical advantage of 9:1.
Determine whether a jump may occur at an initial depth of 0.5 m or not. If a hydraulic jump occurs, determine the sequent depth (conjugate depth) to this initial depth
(a) Find the Reynolds number for the motion of this baseball through air. (b) Determine the drag force on the baseball under these conditions in N.
Suppose an air pollutant with rate constant k= 0.20/hr is emitted into the box at a total rate of 10.0 kg/s. Find the steady-state concentration if the air is assumed to be completely mixed.
At a point in a saturated normally consolidated clay layer the soil is subject to an in-situ vertical effective stress of 50kPa. The soil at the point has a moisture content of 44% and a compression index of 0.45.
A 0.3-m diameter pipeline terminates in a nozzle of outlet diameter = 0.15 m. When water flows through this pipe at a rate of 0.25 m3/s, the force required to hold the pipe (N) is most nearly.
Find an equation that expresses the relationship between the wages earned (x) and the Social Security taxes paid (y) by an employee who earns less than the maximum taxable wage base.
Assume a saturated hydraulic conductivity of 0.8 in./hr, a porosity of 0.62, an initial moisture content of 0.28, and an average capillary suction of 7.2 in. The depression storage is 0.5 in.
water flows into a weigh tank for 30 minutes. Calculate the increase in weight of the tank, if the discharge is 1.5 ft^3/s. The temperature is 50 F.
a bourdon pressure gauge attached to the outside of a tank containing air reads 77.0 psi when the local atmospheric pressure is 760 mm Hg. what will be the gage reading if the atmospheric pressure increases to 773 mm Hg
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