The following cost and benefit information has been estimated for a pump that has a 10-year useful life. Purchase Cost = $2,400
Annual Operating Cost = $1,200
Annual Maintenance Cost = $300
Annual Benefits = $2,000
Salvage Value = $200
Interest rate specified = 9% or 0.09

Find the capital recovery cost for this pump.

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?