A pipeline is installed to transport a red mud slurry from an open tank in an alumina plant to a disposal pond. The line is 5- in schedule 80 commercial steel, 12,000 ft long and is designed to transport the slurry at a rate of 300 gpm. The slurry properties are that of a Bingham plastic with a yield stress of 15 dyne/cm2, a limiting viscosity of 20 cP and a specific gravity of 1.3. Fittings can be neglected.

a. What delivered pump head and horsepower would be required to pump the mud.

b. What would be the required pump head and horsepower to pump water at the same rate through the same pipeline.

c. Choose a Goulds 3196 pump that could be used for both flow scenarios. What would be the proper impeller size and motor horsepower for each scenario?

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0