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?

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

The particle in a two-dimensional well is a useful model for the motion of electrons around the indole ring (3), the conjugated cycle found in the side chain of tryptophan. we may regard indole as a rectangle with sides of length 280 pm and 450 pm, with 10 electrons in the conjugated p system. as in case study 9.1, we assume that in the ground state of the molecule each quantized level is occupied by two electrons. (a) calculate the energy of an electron in the highest occupied level. (b) calculate the frequency of radiation that can induce a transition between the highest occupied and lowest unoccupied levels. 9.27 electrons around the porphine ring (4), the conjugated macrocycle that forms the structural basis of the heme group and the chlorophylls. we may treat the group as a circular ring of radius 440 pm, with 20 electrons in the conjugated system moving along the perimeter of the ring. as in exercise 9.26, assume that in the ground state of the molecule quantized each level is occupied by two electrons. (a) calculate the energy and angular momentum of an electron in the highest occupied level. (b) calculate the frequency of radiation that can induce a transition between the highest occupied and lowest unoccupied levels.

True or false graphs must include scales that increase by the same amount