Engineering, 30.11.2019 01:31 alexwlodko
Using the schema provided below and using sql to create and populate the fragments for this distributed database. item (itemno, itemname, supplier, unitcost) store (storename, state, manager, telephone) stock (itemno, storename, qtyonhand, reorderpoint) this company has 20 stores that stock about 15,000 different items. each item comes from only one supplier, but there are different suppliers for different items. the database currently keeps track of what items are in what store, what items have been reordered at each store, and the reorder point (the minimum number of each item that each store wishes to keep stock). this information is currently stored in a centralized database. use sql to create and populate the fragments for this distributed database.
Answers: 2
Engineering, 04.07.2019 18:10
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
Engineering, 04.07.2019 18:20
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
Answers: 3
Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
Using the schema provided below and using sql to create and populate the fragments for this distribu...
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