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A company tries to reduce all lead-times by 50 percent. There is a discussion concerning the impact of this change. As an example, an item in stock is considered. Demand is continuous and normally distributed. Inventory control is carried out by a (Q,r) policy with continuous review. The demand per week has mean 200 and standard deviation 50. Demands during different weeks are independent. Currently, the lead-time is four weeks and r=850 and Q = 600. Two questions have been raised. a. What is the current fill rate (i.e., the fraction of demand met from inventory)? b. Assume that the lead-time is reduced to two weeks, while r and Q are unchanged. What is the fill rate?
What is the major product produced from the reaction of 2-methyl-2-butene with 30% HBr?
describe the molecular geometry of formic acid in terms of hybrid orbitals,bond angles and sigma and pi bond, and how many lone pairs are in the molecule.
Referring to Table 17.1, calculate the mole fraction of Xe and its concentration in parts per million by volume.
Would the organisms find the environment in the untreated water more favourable, less favourable, or identical (from an energy standpoint) after equilibration with air. Explain briefly
A 17.0-g sample of ice at -19.0°C is mixed with 101.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
At 1000K, the equilibrium constant Kc for the reaction is 3.80x10-5. Suppose you start with 0.0356 of I2 in a 2.30 L flasg at 1000K. What is the concentration of the atomic gas at equilibrium
container Ais filled with air at STP, it is then inserted into a large enclosed container B, which is then flushed with H2(g), what will happen to the pessure inside container A? explain your answer.
1. Draw the mechanism for the methanolysis of 1-bromo-1-methylcylohexane 2. Draw a free energy diagram for the above reaction
The oxidation of 748g of ammonium with 740g of Oxygen produces water and nitrogenoxide. Draw a chemical spread sheet to show what happens during a chemical reaction.
A tank containing liquid butane and one containing liquid propane are sitting adjacent to one another. Each tank is equipped with a regulator with a pressure gauge
Find the entropy change of the system and of the surroundings if 3.000mole of water freezes reversibly at 1.000atm. the freezing temperature is 0.00C at this pressure, and the specific enthalpy change of fusion is equal to 79.7cal/gm at this tempe..
If the heat of combustion for a specific compound is -1360.0 kJ/mol and its molar mass is 82.03 g/mol, how many grams of this compound must
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