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Glazzy Opticon performs laser eye surgery in a purpose-built facility. The cost per operation in £, y, depends on the number of operations conducted per week, x, as follows:
(a) How many operations should be undertaken per week to minimize the cost per operation?
(b) Confirm by means of the second derivative that the cost equation will reach a minimum when this many operations are performed.
(c) What is the minimum cost per operation?
The composition of a gas derived by the gasification of coal is, volume percentage: carbon dioxide 4, carbon monoxide 16, hydrogen 50, methane 15, ethane 3, benzene 2, balance nitrogen. If the gas is burnt in a furnace with 20% excess air, calcula..
Suppose that a consumer has a linear demand function x = ap+bm+c. Write down the differential equation you would need to solve to find the money metric utility function. If you can, solve this differential equation.
What is the pressure of the oxygen gas if the vapor pressure for water at 25°C is 23.8 mm Hg?
Draw a diagram of a simple gene finding HMM that might be useful for prokaryotes. The HMM should contain hidden states for exons and intergenic regions, and it should guarantee that exons have lengths that are multiples of three.
The heat transfer coefficient is h, ambient temperature T∞, surroundings temperature and surface emissivity is T∞.- write the steady state heat equations and boundary conditions.
Determine Cp in J mol-1 K-1 as assuming the gas to be ideal and the expansion of the gas remaining in the flask to be reversible and adiabatic.
A typical feed stream composition is 55% ethylene, 5% inserts, and 40% water. A typical product stream is 52.26% ethylene, 5.49% ethanol, 0.16% ether, 36.81% water, and 5.28% inserts. Calculate the selectivity of ethylene for ethanol and for ether..
What is the minimum value of qo so that the bottom fibers just begin to yield? What are the depths of plastic penetration d1 and d2 for a load qo that is 1.1 times the value just calculated.
Calculate the single pass conversion of A in the reactor
Three identical impedances of 30 ∠30° Ω are connected in delta to a three-phase 173-V system by conductors that have impedances of 0.8 + j0.6 Ω each. Compute the magnitude of the line-to-line voltage at the terminals of the load.
prepare an approximate plot of temperature versus concentration
Implications of the future of fabrication for international trade, transportation, and logistics
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